Dry Filter with Enhanced Separation Output and Convenient Dimensions

Content Provider	The Lens
Abstract	A dry filter 1 to be used in particular in underground mining and tunnel construction having a frame construction 17 into which the required part housings 25-28 can be inserted from the side. The required partition wall 8 is arranged so that an optimal large filtering surface is available both for the incoming raw gas and for the outflowing clean gas. Raw gas duct 5 and clean gas duct 6 run horizontally one above the other and are separated from each other by the sloping 8. This means that a very large filtering surface is available.
Related Links	https://www.lens.org/lens/patent/009-221-432-486-961/frontpage
Language	English
Publisher Date	2019-07-04
Access Restriction	Open
Content Type	Text
Resource Type	Patent
Jurisdiction	United States of America
Date Applied	2019-01-03
Applicant	Cft Gmbh Compact Filter Technic
Application No.	201916238614
Claim	Dry filter ( 1 ) for separating dust and other dispersible substances from industrial exhaust gases and the dust laden air in underground mine and tunnel construction, having a filter housing ( 2 , 3 ) and assigned raw gas duct ( 5 ) and clean gas duct ( 6 ), filter elements ( 9 , 10 , 11 ) assigned to the partition walls ( 8 ) and integrated with regard to the filter housing and a discharge unit ( 12 ) for the filtered dust, and a ventilating fan ( 50 ) for transporting air, wherein the raw gas duct ( 5 ) and clean gas duct ( 6 ) are arranged horizontally one above the other in the filter housing ( 2 , 3 ) and separated by a partition wall ( 8 ) that runs through it and forms the complete filter housing horizontal ( 15 ) and is designed to run sloping upwards from the raw gas inlet ( 21 ) in the direction of the clean gas discharge ( 22 ) to the roof ( 23 ) of the filter housing ( 2 , 3 ), whereby the filter elements ( 9 , 10 , 11 ) are connected with the partition wall ( 8 ) and/or the frame construction ( 17 ) of the filter housing ( 2 , 3 ). Dry filter in accordance with claim 1 , wherein the raw gas duct ( 5 ) is assigned to a first filter housing ( 2 ) and the clean gas duct ( 6 ) to a second filter housing ( 3 ) and both are connected to each other via the free side frames ( 19 , 20 ) of the frame construction ( 17 ). Dry filter in accordance with claim 1 , wherein the clean gas duct ( 6 ) is designed to run above and to the side of the raw gas duct ( 5 ). Dry filter in accordance with claim 1 , wherein the filter elements ( 9 , 10 , 11 ) are designed to form the partition wall ( 8 ) at the same time. Dry filter in accordance with claim 2 , wherein first and second filter housing ( 2 , 3 ) are composed of several part housings ( 25 , 26 , 27 , 28 ) that are to be connected with each other and/or with the frame construction ( 17 ) of the filter housing ( 2 , 3 ). Dry filter in accordance with claim 2 , wherein side frames ( 19 , 19 ′) are assigned to the first filter housing ( 2 ) on both sides that have screw holes ( 30 ) corresponding to the screw holes ( 31 ) of the side frames ( 20 ) of the second filter housing ( 3 ). Dry filter in accordance with claim 3 , wherein the raw gas inlet ( 21 ) and the clean gas discharge ( 22 ) are designed at the same time as components that are designed to be connectable as end panels ( 33 , 34 ) with the first and/or the second filter housing ( 2 , 3 ). Dry filter in accordance with claim 5 , wherein the part housings ( 25 , 26 , 27 , 28 ) are designed to be insertable into the filter housing ( 2 , 3 ) from the side and fixable there. Dry filter in accordance with claim 1 , wherein the partition wall ( 8 ) is designed to be inserted and fixed in the frame construction ( 17 ) after the part housings ( 25 , 26 , 27 , 28 ) have been inserted into the frame construction ( 17 ) of the filter housing ( 2 , 3 ). Dry filter in accordance with claim 1 , wherein the partition wall ( 8 ) consists of rotatable and height-adjustable sections assigned to the individual part housings ( 25 , 26 , 27 , 28 ). Dry filter in accordance with claim 2 , wherein the frame construction ( 17 ) of the first and of the second filter housing ( 2 , 3 ) is designed to enable simple coupling of the end panels ( 33 , 34 ) with the raw gas inlet ( 21 ) or the clean gas discharge ( 22 ) and with the part housings ( 25 , 26 , 27 , 28 ). Dry filter in accordance with claim 2 , wherein the frame construction ( 17 ) of the first and second filter housing ( 2 , 3 ) is designed to be combinable with that of a third and fourth filter housing. Dry filter in accordance with claim 1 , wherein the raw gas duct ( 5 ) at the raw gas inlet ( 21 ) has a protective screen ( 38 ) that is designed in the shape of a funnel in the direction of flow of the raw gas. Dry filter in accordance with claim 1 , wherein the discharge unit ( 12 ) has an inverter ( 39 ) with a quick-release axle ( 40 ) that is supported in a sliding block ( 41 ) with graphite bearings. Dry filter in accordance with claim 14 , wherein the discharge unit ( 12 ) is designed as a chain scraper conveyor ( 42 ), whose carriers come briefly into contact with a scraper ( 44 ) assigned to the upper frame ( 43 ) of the inverter ( 39 ). Dry filter in accordance with claim 14 , wherein a retaining device ( 45 ) designed as a roller ( 46 ) is assigned to the inverter ( 39 ). Dry filter in accordance with claim 1 , wherein the raw gas duct ( 5 ) has a bottom ( 47 ) consisting of light grid panels ( 48 ). Dry filter in accordance with claim 1 , wherein the ventilating fan ( 50 ) is integrated into the clean gas duct ( 6 ) of the filter housing ( 2 , 3 ). Dry filter in accordance with claim 1 , wherein the filter elements ( 9 , 10 , 11 ) are connected with the outer wall ( 49 ) of the filter housing ( 2 , 3 ) by means of a copper strand ( 52 ) bypassing an elastic sealing bead ( 51 ) and that a gas-impermeable elastic sealing bead ( 51 ) is arranged between the filter housing ( 2 , 3 ) and the edge of the filter elements ( 9 , 10 , 11 ). Dry filter in accordance with claim 1 , wherein the raw gas duct floor area ( 47 ′) available for dust separation can be increased by 80-100% without enlargement of the filter housing ( 2 , 3 ) and at the same time the air speed can be reduced by 40-50%. Dry filter in accordance with claim 15 , wherein the chain scraper conveyor ( 42 ) is designed to form the pedestal ( 60 ) for the filter housing ( 2 , 3 ). Dry filter in accordance with claim 14 , wherein a funnel-shaped hopper ( 56 ) is formed between the discharge unit ( 12 ) and the bottom ( 47 ) of the raw gas duct ( 5 ) or the lower edge of the filter elements ( 9 , 10 , 11 ). Dry filter in accordance with claim 1 , wherein two filter housings ( 2 , 3 ) with a hopper ( 56 ) and without a partition wall are joined next to each other into a construction unit, whereby vertical partition walls are also done without for the raw gas duct ( 5 ) and the clean gas duct ( 6 ).
CPC Classification	Separation Safety Devices; Transport; Filling-Up; Rescue; Ventilation; Or Draining In Or Of Mines Or Tunnels Technologies For Adaptation To Climate Change
Extended Family	125-961-800-708-935 076-198-800-279-278 009-221-432-486-961 195-497-248-384-959 077-647-498-156-062 025-391-243-298-146 199-060-741-261-198 121-448-383-932-30X 197-383-097-865-436 172-263-703-202-592 140-892-554-176-239
Patent ID	20190201827
Inventor/Author	Haubold Christian Both Reinhold
IPC	B01D46/00 B01D46/12 B01D46/48 E21F1/08
Status	Active
Owner	Cft Gmbh Compact Filter Technic
Simple Family	125-961-800-708-935 195-497-248-384-959 076-198-800-279-278 009-221-432-486-961 077-647-498-156-062 121-448-383-932-30X 197-383-097-865-436 172-263-703-202-592 140-892-554-176-239
CPC (with Group)	B01D46/0002 B01D46/0008 E21F5/00 B01D2258/02 B01D46/0005 B01D2279/40 B01D46/48 B01D46/12 E21F1/08 Y02A50/2351 B01D46/645 B01D46/58 B01D46/00 E21F5/20
Issuing Authority	United States Patent and Trademark Office (USPTO)
Kind	Patent Application Publication