Dust removal equipment for bentonite crushing

Abstract

The utility model discloses dust removal equipment for crushing bentonite, which comprises a dust removal cover, a flow guide pipe, a cyclone separator and a bag-type dust remover, and a dust outlet of the dust removal cover is connected with a tangential air inlet of the cyclone separator through the flow guide pipe; a top outlet of the cyclone separator is communicated with an air inlet of the bag-type dust collector through a pipeline; a conical dust collecting hopper at the bottom of the cyclone separator is connected with a dust collecting box through a dust discharging valve; a filter bag group is arranged in the bag-type dust collector, a pulse dust cleaning device is arranged at the top of the bag-type dust collector, and the outlet end of the bag-type dust collector is connected with an induced draft fan through an air pipe; through the combination of the cyclone separator and the bag-type dust collector, the cyclone separator is firstly used for pre-separation, most dust particles are separated out, and then the bag-type dust collector is used for further filtration, so that the overall dust collection efficiency is improved, the cyclone separator is used as a pre-separation device, large-particle dust can be removed in advance, and the dust collection efficiency is improved. The amount of dust entering the bag-type dust collector is reduced, and the loss speed of the filter bag is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal device technical field, specifically point to a kind of bentonite crushing dust removal equipment. BACKGROUND

[0002] At present, in the dust removal treatment of bentonite crushing, there are many technical problems. The existing bentonite crushing dust removal mode mostly adopts single bag dust removal. In actual application, the filter bag is prone to blockage, and the dust cleaning is difficult to be thorough. The traditional dust removal equipment has complex structure, and the dust removal efficiency is low, usually less than 85%. At the same time, since the pre-separation device is not arranged, the filter bag is quickly worn out during the treatment process, increasing the maintenance cost of the equipment. In addition, some equipment adopts water mist dust removal mode, which can achieve certain dust removal effect, but is easy to cause bentonite material to be caked, thereby affecting the quality of bentonite. Therefore, a new bentonite crushing dust removal equipment is needed to solve the problems existing in the prior art. SUMMARY

[0003] (I) Technical problem

[0004] The utility model provides a kind of bentonite crushing dust removal equipment, solves the problems such as filter bag of existing equipment easy to block, dust cleaning not thorough, dust removal efficiency low, filter bag quick wear and water mist dust removal affect material quality.

[0005] (II) Technical content

[0006] To solve the above technical problems, the technical scheme of the utility model is as follows: a kind of bentonite crushing dust removal equipment, including dust hood, flow guide pipe, cyclone separator and bag dust collector, the dust hood is fixed by bolt above the discharge port of bentonite crusher, and the dust outlet of dust hood is connected with the tangential air inlet of cyclone separator through flow guide pipe;The top outlet of cyclone separator is communicated with the air inlet of bag dust collector through pipeline, and the conical dust hopper at the bottom of cyclone separator is connected with dust collecting box through dust discharging valve;The filter bag group is arranged in the bag dust collector, and the pulse dust cleaning device is arranged at the top, and the outlet end of bag dust collector is connected with induced draft fan through air pipe;The pulse dust cleaning device includes compressed air tank, electromagnetic pulse valve and spray pipe which are communicated in sequence, and the nozzle of spray pipe is opposite to the opening of filter bag group.

[0007] Further, the flow guide pipe is a telescopic corrugated pipe structure, and the pipe wall is lined with a wear-resistant ceramic layer.

[0008] Further, the inner wall of the cyclone separator is fixedly provided with a spiral guide plate.

[0009] Further, the pulse dust cleaning device is connected with a PLC controller, and the dust cleaning period can be set to 10-15 minutes / time. The filter bag group is cleaned regularly, which effectively solves the problem of filter bag blockage and ensures the continuous and stable operation of the equipment.

[0010] Further, the dust collecting box adopts a double-layer structure, the inner layer is made of stainless steel material, the outer layer is a carbon steel shell, and the interlayer is filled with sound insulation cotton.

[0011] Further, the dust collecting box is provided with an ash discharge valve at the bottom and a transparent observation window is installed on the side wall.

[0012] (Three) technical effects

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1. High-efficiency dust removal: through the combination of the cyclone separator and the bag-type dust collector, most of the dust particles are separated out by the cyclone separator for pre-separation, and then the bag-type dust collector is used for further filtration, so that the overall dust removal efficiency is improved, and the dust removal efficiency is far higher than the level of less than 85% of traditional equipment.

[0015] 2. Prolonging the service life of the filter bag: the cyclone separator is used as a pre-separation device, can remove large-particle dust in advance, reduces the amount of dust entering the bag-type dust collector, effectively reduces the loss speed of the filter bag, and reduces the equipment maintenance cost.

[0016] 3. Avoiding material pollution: the dry dust removal mode is adopted, water mist is not used, the problem of material clumping caused by water mist is avoided, and the quality of the bentonite is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic of the dust removal equipment for bentonite crushing Figure One .

[0018] Figure 2 is a three-dimensional structure schematic of the dust removal equipment for bentonite crushing Figure Two .

[0019] Figure 3 is a three-dimensional structure schematic of the dust removal equipment for bentonite crushing Figure Three .

[0020] Figure 4 is a front view structural schematic of the dust removal equipment for bentonite crushing.

[0021] Figure 5 is a left view structural schematic of the dust removal equipment for bentonite crushing.

[0022] Figure 6 is a cross-sectional structural schematic of the dust removal equipment for bentonite crushing Figure One .

[0023] Figure 7The utility model relates to a cross section structure schematic diagram of bentonite crushing dust removal equipment Figure Two .

[0024] As shown in the figure: 2, dust cover, 3, flow guide pipe, 4, cyclone separator, 5, cloth bag dust collector, 6, pulse dust cleaning device, 7, dust collecting box, 8, induced draft fan, 10, filter bag group, 61, compressed air tank, 62, electromagnetic pulse valve, 63, spray pipe, 64, PLC controller, 71, dust valve, 72, transparent observation window, 73, soundproof cotton. DETAILED DESCRIPTION

[0025] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation structure and operation, therefore, it cannot be understood as a limitation on the utility model.

[0026] In the description of the utility model, it is also necessary to explain that, unless there is explicit provision and limitation, the terms "provided with", "mounted", "connected", "connected" and the like should be understood in a broad sense, for example, it can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0027] The utility model will be further described in detail below in combination with the drawings.

[0028] In combination with the drawings Figure 1 to the drawings Figure 7 A bentonite crushing dust removal equipment, including dust cover 2, flow guide pipe 3, cyclone separator 4 and cloth bag dust collector 5, the dust cover 2 is fixed by bolt in bentonite crusher's discharge port top, and the dust outlet of dust cover 2 is connected with the tangential air inlet of cyclone separator 4 through flow guide pipe 3, the top outlet of cyclone separator 4 is communicated with the air inlet of cloth bag dust collector 5 through pipeline, and the conical dust hopper at the bottom of cyclone separator 4 is connected with dust collecting box 7 through dust discharging valve 9, the inside of cloth bag dust collector 5 is equipped with filter bag group 10, and pulse dust cleaning device 6 is arranged at the top, and induced draft fan 8 is connected to the outlet end of cloth bag dust collector 5 through air pipe, the pulse dust cleaning device 6 includes compressed air tank 61, electromagnetic pulse valve 62 and spray pipe 63 that are sequentially communicated, the nozzle of spray pipe 63 is opposite the opening of filter bag group 10, the pulse dust cleaning device 6 is connected with PLC controller 64, and the dust cleaning period is set to 10-15 minutes / time.

[0029] The guide pipe 3 is a telescopic bellows structure, and the pipe wall is lined with a wear-resistant ceramic layer, so that the installation requirement under different working conditions can be met, and the wear-resistant ceramic layer enhances the wear resistance of the guide pipe and prolongs the service life.

[0030] The spiral guide plate 41 is fixedly arranged on the inner wall of the cyclone separator 4, the internal airflow path is optimized, and the separation efficiency is further improved.

[0031] The dust collecting box 7 adopts a double-layer structure, the inner layer 304 is made of corrosion-resistant stainless steel, the outer layer is a carbon steel shell that provides structural strength, the interlayer is filled with sound insulation cotton 73 that can reduce the noise generated during dust removal, the bottom is provided with a dust discharge valve 71 for facilitating dust removal, and the side wall is provided with a transparent observation window 72 for facilitating observation of the dust collecting condition.

[0032] The working principle of the utility model is as follows: when the bentonite crusher works, the dust-containing gas generated at the discharge port moves upward and is collected by the dust removal cover 2 fixed above the dust removal cover 2 through bolts. The dust-containing gas enters the cyclone separator 4 in a tangent direction through the guide pipe 3, under the guidance of the spiral guide plate 41, the airflow rotates at high speed, and the dust particles with high density are thrown to the wall under the action of centrifugal force and fall along the wall to the conical dust collecting hopper, and then enter the dust collecting box 7 through the dust discharge valve 9. The gas purified initially enters the bag-type dust collector 5 through the pipeline from the top outlet of the cyclone separator 4, under the suction of the induced draft fan 8, the gas passes through the filter bag group 10, the dust is intercepted on the surface of the filter bag, and the purified gas is discharged from the outlet of the bag-type dust collector 5 through the air pipe. The pulse dust cleaning device 6 is controlled by the PLC controller 64, and according to the set dust cleaning period of 10-15 minutes / time, the compressed air in the compressed air tank 61 is sprayed to the filter bag group 10 through the nozzle of the blowing pipe 63 through the electromagnetic pulse valve 62, the dust on the surface of the filter bag is shaken off, and falls into the dust hopper of the bag-type dust collector.

[0033] The working process of the utility model is as follows:

[0034] 1. Dust-containing gas collection: the bentonite crusher works, dust-containing gas is generated at the discharge port, the induced draft fan 8 is started, and the airflow is driven to enter from the dust removal cover 2, the dust removal cover 2 collects the dust-containing gas, and the dust removal cover 2 is fixed above the discharge port of the crusher through bolts, which can effectively prevent dust overflow.

[0035] 2. Primary separation: the dust-containing gas enters the cyclone separator 4 in a tangent direction through the guide pipe 3 with a telescopic bellows structure and a wear-resistant ceramic layer lining the pipe wall. Under the action of the spiral guide plate 41 and the induced draft fan 8, the airflow rotates at high speed, large-particle dust is thrown to the wall under the action of centrifugal force and falls into the conical dust collecting hopper, enters the dust collecting box 7 through the dust discharge valve 9, and the operator can observe the dust collecting condition through the transparent observation window 72 on the side wall of the dust collecting box 7. When dust removal is needed, the bottom dust discharge valve 71 is opened for dust removal.

[0036] 3. Secondary filtration: the gas after primary purification is introduced into the bag filter 5 from the top outlet of the cyclone separator 4 through a pipeline. Under the suction of the induced draft fan 8, the gas passes through the filter bag group 10, and the dust is intercepted on the surface of the filter bag. The purified gas is discharged from the outlet of the bag filter 5 through an air pipe.

[0037] 4. Dust cleaning process: the PLC controller 64 of the pulse dust cleaning device 6 controls the electromagnetic pulse valve 62 to open according to the set dust cleaning period of 10-15 minutes / time. The compressed air in the compressed air tank 61 is sprayed to the filter bag group 10 through the nozzle of the spraying pipe 63, so that the filter bag is instantaneously expanded and vibrated, the surface dust is shaken off, and the blockage is prevented.

[0038] The above describes the utility model and its implementation mode, which is not limited, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A dust removal device for bentonite crushing, comprising a dust removal cover (2), a flow guide pipe (3), a cyclone separator (4) and a bag-type dust collector (5), characterized in that: the dust removal cover (2) is fixed above the discharge port of the bentonite crusher by bolts, the dust outlet of the dust removal cover (2) is connected with the tangential air inlet of the cyclone separator (4) through the flow guide pipe (3); the top outlet of the cyclone separator (4) is communicated with the air inlet of the bag-type dust collector (5) through a pipeline, and the conical dust collecting hopper at the bottom of the cyclone separator (4) is connected with a dust collecting box (7) through a dust discharging valve (9); the bag-type dust collector (5) is internally provided with a filter bag group (10), and is provided at the top with a pulse dust cleaning device (6), and the outlet end of the bag-type dust collector (5) is connected with an induced draft fan (8) through an air pipe; the pulse dust cleaning device (6) comprises a compressed air tank (61), an electromagnetic pulse valve (62) and a blowpipe (63) which are communicated in sequence, and the nozzle of the blowpipe (63) is opposite to the opening of the filter bag group (10).

2. The dust removal apparatus for bentonite crushing according to claim 1, characterized in that: The flow guide pipe (3) is a telescopic corrugated pipe structure, and the pipe wall is lined with a wear-resistant ceramic layer.

3. The dedusting apparatus for breaking of bentonite according to claim 1, characterized in that: The cyclone separator (4) is internally fixedly provided with a spiral flow guide plate (41).

4. The dust removal apparatus for bentonite crushing according to claim 1, characterized in that: The pulse dust cleaning device (6) is connected with a PLC controller (64).

5. The dedusting apparatus for breaking of bentonite according to claim 1, characterized in that: The dust collecting box (7) adopts a double-layer structure, the inner layer is made of 304 stainless steel, the outer layer is a carbon steel shell, and the interlayer is filled with sound insulation cotton (73).

6. The dedusting apparatus for breaking of bentonite according to claim 1, characterized in that: The dust collecting box (7) is provided at the bottom with a dust discharging valve (71) and is provided at the side wall with a transparent observation window (72).

Images