DE2703260C2 - Filter dedusters for driving routes and tunnels - Google Patents

Description

3

Channels 2 and 4 against each other is shown by a dashed line

In FLg 2, there are the filter bags that can be removed and installed at the side marked with S, the dust collection chamber with 6, the raw gas duct again with 2 and the clean gas duct 5 again with 4. In the clean gas duct 4 there is a compressed air storage tube 8. Mh 9 is a compressed air surge valve denotes that when the compressed air storage tube 8 opens, a «blast of compressed air into the designated 7 Clean gas duct collecting space discharges, from where it enters the conveyor pockets 5 and cleans them so that the Dust falls into the dust collection chamber 6. The actuation of the compressed air blast valves 9 can be via time relays in take place at the required intervals and for the time required in each case. At 10 there is one on the side of the is The inspection or assembly door attached to the device housing denotes the air blast cleaning device after it has been opened and the filter bags are easily accessible for inspection to find leaky filter bags, for example

and maintenance work can also be carried out

nen, for example on the pressure shock valves as well as filter B

bags can be exchanged. When the device is set up with the assembly door 10 facing the middle of the track is this work can be carried out without space constraints. If such a list is not possible, it could also be useful on the opposite longitudinal wall of the filter housing

an inspection not shown in the drawing

and assembly door to be arranged.

For this purpose 2 sheets of drawings

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Ö5

Claims (1)

1 2 Air blast cleaning device with compressed air storage claim: 'The pipe and nozzle assembly are accessible, which means that indicates that for use for the Filter deduster with one with a raw gas injection in mining and tunnel construction connected filter space, in 5 half of the filter space a raw and a Reirigas channel in chem filter balls charged with raw gas from the outside are arranged in such a way that the raw gas channel ' see are suspended at the side and with the side starting from the raw gas inlet, which is arranged to the side brought inspection doors through which one is the Ta- is opposite to the one with the clean gas collection in inside facing, to a clean gas connection, the blast cleaning device leading clean gas collecting space as well as an air vent receiving and to the clean gas outlet on the Impact cleaning device with compressed air storage pipe on the opposite side of the raw gas inlet and nozzle arrangement are accessible, since the clean gas channel narrows characterized in that for use by the arrangement of both the raw gas channel as for the tunneling in mining and also for the clean gas sewer, which has the shape of a quad Tunnel construction above the filter room can add a pipe that is above the filter room and a clean gas channel are arranged in the mold, a filter housing with a very small and regular the raw gas channel is achieved starting from the raw gas cross-section that enters the which is arranged laterally. opposite to the existing route or tunnel cross-section not in mit the clean gas collecting space in connection - obstructive manner diminished The arrangement of the branches. accommodate the surge cleaning device - 20 and outlet openings for the raw or clean gas in and to the clean gas outlet on the raw gas end walls of the housing allows the entry on the opposite side to be set up in such a way that no or only very little gas duct narrows little space is available It is true (prospectus »Dry filter device type FiI- 25 terschmidt «from the company Karl Schmidt Schmidt-Luftfilterbau, Essen) a filter deduster with filter pockets for known in the mining industry, its designed as a cover The invention relates to a filter deduster for the clean gas duct facing against the direction of air flow Route and tunnel driving. narrowed and its housing the shape of a cuboid It is (Die NWhIe + Mischfuttertechnik, Heft 44,112. 30 with a prism attached to it Volume, November 6, 1975, page 582) a filter removal, even if this housing on the air inlet side is icy known with einet / with e>: .em crude gas inlet has a reduced cross-section, so is its cross-connection standing filter room, in which from the section on the air outlet side it is disproportionate Ben with raw gas pressurized filter: ash laterally large and this largest cross-section of the housing is for are hung, and with laterally attached inspection 35 the narrowing of the track cross-section through the FiI doors, due to the device facing the inside of the bag. Also makes it difficult to unregulate a clean gas outlet leading clean gas and nozzle arrangement accessible to underground mining operations. Also is are borrowed. In these filter dust extractors the raw gas 40 (US-PS 39 28 008) an air filter are known, the filter channel on the one hand and the clean gas collecting room on which the block is inserted into the housing at an angle opposite side of the filter elements arranged that are on opposite sides of the filter block net This construction has a very high space requirement and results in a prismatic raw and clean air duct As a result, and on top of that, the input and thereby the replacement of the filter block in Ge outlet openings is intended for the raw and clean gas on the 45 longitudinal direction of the house. This training housing top are arranged so that a cuboid housing allows above the manure, they he housing However, additional space for the supply and discharge lines requires relatively large housing dimensions Must be available. sings. The removal of the hollow filter organs from When driving in underground pit dust separators by pressure surge backwashing and drifts and tunneling are usually very much so the devices used for this are in themselves limited space. The known (DE-AS 12 28 130) that can be used there. In the case of the filter according to the Filter dedusters are allowed to use the present invention, however, result from the pressure surge-free or tunnel cross-section not so much different compared to other cleaning methods, beige, that the passage for the mechanical shaking used during dismantling, for example, is very considerable ten machines and devices and the operators 55 advantages in relation to the size of the filter, its would be made difficult or even impossible. Therefore maintenance-free and insensitive to moisture the state-of-the-art filter is removed without uneven cleaning of the pockets, dust unsuitable for these purposes and the invention that is because of the prismatic cross-section of the gas the task underlying a filter deduster was to be feared, must be accepted. create, the 60 An embodiment of the filter dust extractor according to kc is particularly suitable. the invention is described below with reference to the drawing The subject of the invention is a filter deduster with described, in the simplified representation in one connected to a raw gas inlet F i g. 1 a plan view of the filter housing and the filter room, in which raw gas is loaded from the outside. 2 a cross section through the filter deduster Opened filter bags are suspended from the side and 65 are shown. with side-mounted inspection doors through which In F i g. 1 is the raw gas inlet with 1 and the raw gas inlet denoted by 2 facing the inside of the pocket to a clean channel. The clean gas outlet is 3 The clean gas collection chamber leading to the gas outlet and one designated, the clean gas duct with 4. The limitation of the