Novel wet dust collector for mine
By designing a new type of wet dust collector for mining, which uses high-pressure nozzles, staggered baffles, and multi-layer demisters, the problems of dust accumulation and blockage and water carryover at the air outlet of traditional devices have been solved, achieving efficient dust removal and water reuse.
Patent Information
- Application Number
- CN202520621992.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Traditional pulse bag dust collectors and existing wet dust collectors suffer from problems such as dust accumulation and blockage, poor dust removal efficiency, and severe water carryover at the air outlet when handling large volumes of mineral dust.
A novel wet dust collector for mining was designed, comprising a dust collection box, a filter box, and a multi-stage filtration pool. It employs high-pressure nozzles for spraying, staggered inclined baffles, and multi-layer demisters. Through multiple reversals of airflow combined with water mist, the dust collection chamber collects dirt, and the multi-stage sedimentation filtration pool separates clean water. This design avoids the need for a filter screen structure and utilizes water flushing for wastewater discharge.
It achieves efficient dust removal, reduces dust accumulation and blockage, reduces water carryover at the air outlet, the clean water can be reused, and it is easy to maintain and has low cost.
Smart Images
Figure CN223739469U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to dust gas treatment equipment, concretely relates to a novel mine wet dust collector. BACKGROUND
[0002] Wet dust removal is a method that gas is purified by washing dust particles down by fully contacting washing liquid (generally water) with dust-containing gas, and the mine wet dust removal device generally comprises a motor, a spray, an impeller, a filter, a filter screen mist eliminator and the like, which is composed of an air inlet, a spray system, a washing chamber, a dehydration device, an air outlet and the like,
[0003] At present, when treating high-flow wet mine dust, the dust humidity is high, the viscosity is large, the air volume of the dust removal pipeline is large, and the traditional pulse filter bag dust removal device or the existing wet dust removal device all has the problem of dust accumulation and blockage, the dust removal effect is poor, frequent maintenance and pollution discharge are needed, and the water-carrying phenomenon of the air outlet is serious. UTILITY MODEL CONTENTS
[0004] In order to make up for the above shortcomings, the utility model provides a novel mine wet dust collector which overcomes the above technical problems or at least partially solves the above problems, has reasonable structure design, good dust removal effect and low cost.
[0005] In order to achieve the above purposes, the technical scheme of the utility model is as follows:
[0006] A novel mine wet dust collector, which comprises a dust removal box and a filter box, the dust removal box is arranged above the filter box, one end of the dust removal box is provided with an air inlet, the other end is provided with an air outlet, a dust removal channel with a square wave shape path is arranged in the dust removal box and is communicated with the air inlet and the air outlet, the dust removal channel comprises a spray section I, a spray section II and a demisting section, a dirt collecting cavity is arranged below the dust removal channel, a plurality of dirt discharge openings are arranged at the lower end of the dust removal channel and are communicated with the dirt collecting cavity, the dirt collecting cavity is communicated with the filter box through a drain pipe, the filter box is provided with a plurality of filter pools, spray heads are arranged in the spray section I and the spray section II, and the spray heads are connected with the filter box through a water supply pipe.
[0007] The spray heads arranged in the spray section I and the spray section II are directed towards the wind flow direction and are in a forward spray mode, the spray heads are uniformly distributed on the channel cross section, the spray heads are high-pressure spray heads, and the spray heads are connected with the clean water pool in the filter box through a water pump.
[0008] A baffle is arranged at the air outlet in the dust removal channel of the dust removal box, the baffle is inclined and shields the position of the air outlet, the water-carrying gas flow needs to pass through the baffle and then reenters the air outlet, and the water-carrying amount of the air outlet can be effectively reduced or decreased through the demisting device and the baffle; further, the baffle is arranged with a plurality of staggered inclinations and is arranged in the channel in the up-down direction.
[0009] The air inlet is the first spraying section I, the air outlet is the water collecting section, the airflow enters the second spraying section I after the first turning, then the spraying section II and the demisting section, the airflow enters the water collecting section after the second turning, after the dust airflow passes through the spraying section I and the spraying section II, most of the dust has combined with the water mist and flows into the sewage collecting cavity through the sewage outlet, most of the water vapor condenses into water and flows into the sewage collecting cavity through the demisting section, and a small part of the water vapor condenses and flows into the sewage collecting cavity in the water collecting section.
[0010] The sewage outlet is arranged at the lowest end position of the turning position below the dust removal channel, and the water flow with dirt enters the sewage collecting cavity through the sewage outlet.
[0011] The bottom surface of the sewage collecting cavity is inclined downward or upward from the air outlet position to the air inlet position in the length direction of the dust removal box, and the inclined arrangement is to facilitate flow guide, the lowest end of the sewage collecting cavity is a sewer pipe, and the sewage collected from each section of the dust removal channel flows into the sewer pipe through the inclined bottom surface of the sewage collecting cavity and enters the filter box. Further, the bottom surface of the sewage collecting cavity is provided with an inclined surface in the width direction of the dust removal box, so as to avoid dust accumulation on the bottom surface of the sewage collecting cavity, and a cleaning flange is arranged at one end of the sewage collecting cavity, so as to facilitate opening and flushing cleaning.
[0012] The multi-stage filter tank is a three-stage or four-stage filter sedimentation tank, which comprises a water inlet tank, a sedimentation tank and a clean water tank, dirt is settled at the bottom of the tank by sedimentation, and clean water finally flows into the clean water tank by overflow; the sewage collecting cavity enters the water inlet tank through the sewer pipe, and the water inlet tank and the sedimentation tank are provided with a sewage pump at the bottom to effectively discharge the sewage at the bottom to the sewage pipe.
[0013] Further, a sewage valve is arranged at one side of each tank bottom of the multi-stage filter tank.
[0014] Further, the water inlet tank is provided with a water supply pipe connected to a water source; and the clean water tank is provided with an overflow port in communication with the sewage pipe.
[0015] The dust removal channel comprises a plurality of vertically arranged partitions, one of the two adjacent partitions is fixedly connected to the upper end of the inner cavity of the dust removal box, and the other is fixedly connected to the lower end of the inner cavity of the dust removal box, and each partition divides the inner cavity of the dust removal box into two sections in communication with each other. According to the actual dust removal capacity, the dust removal channel in the dust removal box can be arranged into five, six, seven, eight or even more sections of dust removal channel structure, the air inlet of the odd section dust removal channel structure is arranged at the upper position, the airflow of the spraying section I is directed downward, and the air inlet of the even section dust removal channel structure is arranged at the lower position, the airflow of the spraying section I is directed upward.
[0016] The utility model has the advantages of reasonable structure, when treating coal mine dust, dust gas combines with spray to form sewage into the sewage collecting cavity, the demisting section and the water collecting section collect water vapor to enter the sewage collecting cavity, the filtered clean water can enter the spray pipeline through the water pump, the dust and dirt are discharged through the filter box pool bottom blowdown pipe, compared with the traditional large air volume dust removal device, the utility model has the characteristics of good dust removal effect, not easy to block and convenient maintenance, does not need filter screen device, the sewage can be reused after multistage sedimentation filtration, and the water carrying problem of the air outlet can be effectively solved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the whole structure schematic diagram of the utility model embodiment 1.
[0018] Figure 2 It is the internal structure schematic diagram of the utility model embodiment 1.
[0019] Figure 3 It is the schematic diagram of the utility model embodiment 2.
[0020] Figure 4 It is the schematic diagram of the utility model embodiment 3.
[0021] 1-dust removal box, 2-filter box, 3-sewage collecting cavity, 4-water inlet pipe, 5-water outlet pipe, 6-blowdown pipe, 7-air inlet, 8-air outlet, 9-multistage filter pool, 11-spray section I, 12-spray section II, 13-demisting section, 14-water collecting section, 15-baffle, 16-baffle, 17-sprayer, 18-demister, 19-cleaning flange, 21-overflow, 22-blowdown branch pipe, 23-water inlet pool, 24-settling tank, 25-clean water pool, 31-blowdown port. DETAILED DESCRIPTION
[0022] The utility model will be described clearly and completely in combination with the accompanying drawings. Figure 1 The technical scheme of the utility model is described.
[0023] In the utility model, the dust removal channel is vertically arranged, each vertical channel is called a section, the dust removal channel includes a plurality of vertically arranged baffles 15, one of the two adjacent baffles 15 is fixedly connected with the upper end of the inner cavity of the dust removal box 1, and the other is fixedly connected with the lower end of the inner cavity of the dust removal box 1, and each baffle 15 divides the inner cavity of the dust removal box 1 into two sections in communication with each other. According to the actual dust removal capacity, the dust removal channel in the dust removal box 1 can be arranged into five sections, six sections, seven sections, eight sections or even more sections, for example, the embodiment 1 of the utility model is a five-section structure, the embodiment 2 is a four-section structure, and the embodiment 3 is a six-section structure.
[0024] Embodiment 1, as shown in the figure, Figure 1 and Figure 2The utility model discloses a new type of mine wet dust collector, which comprises a dust removal box 1 and a filter box 2, the dust removal box 1 is arranged above the filter box 2, one end of the dust removal box 1 is provided with an air inlet 7, the other end is provided with an air outlet 8, a dust removal channel with a square wave shape path is arranged in the dust removal box 1 and is communicated with the air inlet 7 and the air outlet 8, the dust removal channel comprises two spray sections I 11, one spray section II 12, one demisting section 13 and one water collecting section 14, a dirt collecting cavity 3 is arranged below the dust removal channel, a plurality of dirt discharge openings 31 are arranged at the lower end of the dust removal channel and are communicated with the dirt collecting cavity 3, the diameter of the dirt discharge openings is at least 10 cm, the dirt collecting cavity 3 is communicated with the filter box 2 through a drain pipe 5, the filter box 2 is provided with a plurality of filter tanks 9, the spray sections I 11 and the spray section II 12 are provided with spray heads 17, and the spray heads 17 are connected with the filter box 2 through a water supply pipe 4; the demisting section 13 is provided with a demister 18.
[0025] The spray heads 17 arranged in the spray sections I 11 and the spray section II 12 are directed towards the airflow direction and are arranged in a forward spraying mode, the spray heads 17 are uniformly distributed on the channel cross section, and the spray heads 17 are connected with a clean water tank in the filter box 2 through a water pump, and a switch valve can be arranged on the water supply pipe.
[0026] The dust removal box 1 is provided with a baffle 16 at the air outlet 8 in the dust removal channel, the baffle 16 is inclined and covers the position of the air outlet 8, and the water-containing airflow needs to pass through the baffle 16 and then enter the air outlet 8, so that the water content of the air outlet 8 can be effectively reduced or decreased through the demister 18 and the baffle 16; further, the baffle 16 is provided with a plurality of staggered inclined plates arranged in the channel in the up-down direction.
[0027] The air inlet 7 is the spray section I 11, the air outlet 8 is the water collecting section 14, the airflow enters the second spray section I 11 after being folded for the first time, the airflow enters the spray section II 12 after being folded for the second time, the airflow enters the demisting section 13 after being folded, the airflow enters the water collecting section 14 after being folded for the third time, after passing through the spray section I 11 and the spray section II 12, most of the dust in the airflow is combined with the water mist and then flows into the dirt collecting cavity 3 through the dirt discharge openings, the entire dust removal channel has a high fine dust capture rate, most of the water vapor in the airflow is condensed into water flow and then flows into the dirt collecting cavity 3 through the demisting section 13, and a small amount of water vapor is condensed into water flow and then flows into the dirt collecting cavity 3 in the water collecting section 14.
[0028] The dirt discharge openings are arranged at the lowest position of the folding position below the dust removal channel, and the water flow containing dirt enters the dirt collecting cavity 3 through the dirt discharge openings.
[0029] The bottom surface of the dirt collecting cavity 3 is inclined downward from the position of the air outlet 8 to the position of the air inlet 7 in the length direction of the dust removal box 1, and the lowest end is the sewer pipe 5. The sewage from each section of the dust removal channel is collected into the sewer pipe 5 through the inclined bottom surface of the dirt collecting cavity 3 and then enters the filter box 2. Further, the bottom surface of the dirt collecting cavity 3 is provided with an inclined surface in the width direction of the dust removal box 1 to avoid dust accumulation. For easy cleaning, a cleaning flange 19 is arranged at one end of the dirt collecting cavity 3 to facilitate opening and flushing.
[0030] The multi-stage filter tank 9 is a three-stage filter sedimentation tank, which includes a water inlet tank 23, a sedimentation tank 24 and a clean water tank 25. The dirt is settled at the bottom of the tank by sedimentation, and the clean water finally flows into the clean water tank by overflow. The dirt collecting cavity 3 enters the water inlet tank through the sewer pipe 5. The water inlet tank and the bottom of the sedimentation tank are provided with a sewage pump to effectively discharge the dirt at the bottom of the tank to the sewage pipe 6 through the sewage branch pipe 22.
[0031] Further, a sewage valve is arranged at one side of the bottom of each tank of the multi-stage filter tank 9.
[0032] Further, the water inlet tank is provided with a water supply pipe connected to a water source; and the clean water tank is provided with an overflow port 21 in communication with the sewage pipe 6.
[0033] The materials of the components of the box body are selected from Q235B stainless steel with an inner anti-corrosion coating to improve the corrosion resistance and wear resistance.
[0034] The fan of the air outlet 8 adopts a centrifugal fan with a power of 75KW, a processing air volume of 65000-70000m³ / h, and a wind pressure of 2700-2100Pa. The blade is made of wear-resistant composite steel plate. The fan has large air volume, high wind pressure and wear resistance, and can solve the problem of pipe dust accumulation.
[0035] The demister 18 adopts a multi-layer structure, and the number of stacked demisters can be increased to increase the overall thickness of the demister 18, which helps to improve the demisting capacity and solve the problem of water in the air outlet.
[0036] The spray section I 11 and the spray section II 12 of the dust removal box 1 are provided with flow uniforming plates to adjust the airflow uniformity and flow rate.
[0037] The downstream of the spray section II 12 is further provided with continuous spiral baffles, and the spray section II 12 adopts high-pressure nozzles 17.
[0038] The entire structure does not have a filter screen structure, and the dirt is collected and discharged by water flushing. The filter tank is provided with a sewage pump, the grey water is separated, and the filter tank is not easy to be blocked.
[0039] Example 2. As Figure 3The mine new type wet dust collector shown comprises a dust removal box 1, a filter box 2, compared with the embodiment 1, the difference structure is only that, the embodiment is a four-stage dust removal channel structure, the air inlet 7 is arranged at the lower position of the spray section I 11, and only one spray section I 11 is arranged, one group or multiple groups are arranged according to the size of the processing air volume, and one spray section I 11 is arranged in the embodiment.
[0040] Embodiment 3. As in embodiment 1, a mine new type wet dust collector is shown, which comprises a dust removal box 1, a filter box 2, compared with the embodiment 1, the difference structure is only that, the embodiment is a four-stage dust removal channel structure, the air inlet 7 is arranged at the lower position of the spray section I 11, and only one spray section I 11 is arranged, one group or multiple groups are arranged according to the size of the processing air volume, and one spray section I 11 is arranged in the embodiment. Figure 4
[0041] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the technical field, on the premise of not departing from the principle of the present application, can make a number of improvements, these improvements in not pay the premise of creative labor also should be regarded as the protection scope of the present application.
Claims
1. A mine new type wet dust collector, characterized in that: It includes dust removal box, filter box, dust removal box is arranged above filter box, dust removal box one end is provided with air inlet, the other end is provided with air outlet, dust removal box is provided with dust removal channel of square wave shape path in dust removal box and is connected with air inlet and air outlet, dust removal channel includes spray section I, spray section II, demisting section, dust removal channel lower position is provided with the collection of sewage cavity, dust removal channel lower end is provided with a plurality of blowdown ports and the collection of sewage cavity is communicated, the collection of sewage cavity is communicated with filter box through drain pipe, the spray section I, the spray section II in the spray section I, the spray section II is provided with spray head, and the spray head is connected with the filter box through the water pipe; The demisting section is provided with a demister.
2. The mine new type wet dust collector according to claim 1, characterized in that: The spray head arranged in the spray section I and the spray section II faces the wind direction, and the spray is forward.
3. The mine new type wet dust collector according to claim 2, characterized in that: The spray head is a high-pressure spray head connected with the clean water pool in the filter box through the water pump.
4. The mine new type wet dust collector according to claim 1, characterized in that: The air outlet of the dust removal channel in the dust removal box is provided with a baffle, and the baffle is inclined and shielded at the air outlet position.
5. The mine new type wet dust collector according to claim 4, characterized in that: The baffle is provided with multiple staggered inclinations arranged in the channel in the up-down direction.
6. The mine new type wet dust collector according to claim 1, characterized in that: The spray section I is provided with multiple sections; the demisting section is provided with multiple sections.
7. The mine new type wet dust collector according to claim 1, characterized in that: The blowdown port is arranged at the lowest end position of the turn-back position below the dust removal channel.
8. The mine new type wet dust collector according to claim 1, characterized in that: The bottom surface of the collection of sewage cavity is inclined downward or upward from the air outlet position to the air inlet position in the length direction of the dust removal box, and the lowest end is the drain pipe.
9. The mine new type wet dust collector according to claim 1, characterized in that: A plurality of filter pools are arranged in the filter box, the plurality of filter pools are three-stage filter sedimentation pools or four-stage filter sedimentation pools, which include a water inlet pool, a sedimentation pool and a clean water pool, the collection of sewage cavity enters the water inlet pool through the drain pipe, and the water inlet pool and the sedimentation pool are provided with a blowdown pump at the bottom to effectively discharge the sewage at the bottom of the pool to the blowdown pipe.
10. The mine new type wet dust collector according to claim 9, characterized in that: Each pool bottom side of the plurality of filter pools is provided with a blowdown valve; the water inlet pool is provided with a water replenishment pipe connected with a water source; and the clean water pool is provided with an overflow port communicated with the blowdown pipe.