CN216406890U

CN216406890U - Wet dust removal system used under extremely cold working condition

Info

Publication number: CN216406890U
Application number: CN202123306123.2U
Authority: CN
Inventors: 谭广斌; 蔡洪浩
Original assignee: Anbaituo Nanjing Construction Mining Equipment Co ltd
Current assignee: Anbaituo Nanjing Construction Mining Equipment Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-04-29
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a wet dust removal system used under an extremely cold working condition, and belongs to the technical field of drill dust removal. The wet dust removal system used under the extremely cold working condition comprises a water supply unit, an air supply unit and a heating unit, wherein a pressure control two-way valve is arranged between a water delivery device and an air delivery device, and the heating unit is used for heating the water delivery device; through the arrangement of the device, equipment in all links of the wet dust removal system is prevented from freezing under the extremely cold working condition, the normal operation of the drill dust removal system is ensured, the use efficiency of a drill is improved, the service life of a drill bit is prolonged, the maintenance cost is reduced, the environment is protected, and the influence of dust on an operator is reduced.

Description

Wet dust removal system used under extremely cold working condition

Technical Field

The utility model relates to the technical field of dust removal of drilling machines, in particular to a wet dust removal system used under an extremely cold working condition.

Background

In the mining process of a large-scale open pit mine, a large amount of dust can be generated by a blast hole drilling machine during the punching operation. With the social development and the increasing environmental requirements of human beings, dust generated in the drilling process needs to be strictly controlled, and adverse effects on the environment and operators are avoided.

Two dust removal modes, namely dry dust removal and wet dust removal, are generally adopted by the blast hole drilling machine. The dry dust removal mainly comprises the steps that dust generated by punching is sucked into a dust collector, large-particle dust falls from a dust exhaust port through centrifugal force, small-particle dust is adsorbed on the surface of a filter element, and the dust is blown off through back blowing of compressed gas and then falls from the dust exhaust port; wet-type dust removal mainly utilizes water and gas mixture, forms atomizing steam and adsorbs dust particle together, avoids the dust to fly in the air, but when using under extremely cold condition, takes place the frozen problem of water easily, causes the unable normal work of wet-type dust removal system, causes environmental pollution, also can lead to the excessive wearing and tearing of drill bit simultaneously, and the availability factor and the use cost of rig all show the increase.

Through the retrieval, chinese utility model patent that the publication number of granting is CN211900519U discloses a blasting drilling equipment with dust fall function, include: the drilling device is movably arranged on the upper wall surface of the support, one end of the hydraulic rod is rotatably arranged on the rear wall surface of the base, and the other end of the hydraulic rod is rotatably arranged on the rear wall surface of the support; water is conveyed to the hollow drill bit through the water pump, and dust suppression can be carried out on a dust generation source.

In addition, as a chinese utility model patent with an authorized publication number of CN212774110U, a blasting and drilling device for open blasting construction is disclosed, comprising a first frame, wherein one side of the first frame is provided with a fixed seat, the top of the fixed seat is fixedly provided with a water tank, one side of the fixed seat is fixedly provided with a plurality of first guide rails, the outer side of the first guide rail is provided with a first fixed block, one side of the first fixed block is fixedly provided with a first motor, the output end of the first motor is fixedly provided with a drill bit, one side of the water tank is provided with a water delivery pump, the output end of the water delivery pump is fixedly connected with a first connecting pipe, and the other end of the first connecting pipe is fixedly connected with a water spray pipe; through the setting of water tank, water delivery pump and spray pipe, can remove dust when drilling.

However, in the above solutions, the wet dust removal system can only be used at normal temperature, and if water is very easy to freeze and cannot normally operate under an extremely cold condition, there is an urgent need for a drilling machine wet dust removal system that can be used under an extremely cold condition.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wet dust removal system for a drilling machine under an extremely cold working condition, aiming at the defects that the drilling machine wet dust removal system in the prior art is easy to freeze and cannot be normally used under the extremely cold working condition.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

the utility model discloses a wet dust removal system used under an extremely cold working condition, which comprises a water supply unit, wherein the water supply unit comprises a water pump, a water tank and a water pipe, the water tank is used for storing water, the water tank is provided with a first heating unit, the water pump is used for pumping water from the water tank, the water pump is provided with a second heating unit, the water pipe is used for guiding the water pumped out by the water pump, and the water pipe is provided with a third heating unit; the dust removal device is characterized by further comprising an air supply unit and a dust removal pipeline inlet end, wherein the water supply unit and the air supply unit are connected with the dust removal pipeline inlet end. Through the arrangement of the structure, equipment in each link of the wet dust removal system is prevented from freezing under the extremely cold working condition, the normal operation of the dust removal system of the drilling machine is ensured, the service efficiency of the blast hole drilling machine is improved, the service life of a drill bit is prolonged, the maintenance cost is reduced, the environment is protected, and the influence of dust on an operator is reduced.

Preferably, the first heating unit includes an engine, a water pipe and a radiator heater, one end of the water pipe is connected to a port on the engine body, and the other end of the water pipe is connected to the radiator heater. Through the setting of above-mentioned structure, the system need not additionally to introduce the heating source, and cyclic utilization engine work waste heat just can guarantee that the water in the water tank is the warm water all the time, can not produce and freeze, hinders the flow of water, and whole wet dedusting system can normal operating.

Preferably, the second heating unit includes water pump box, water pump heater and heat preservation cotton, and heat preservation cotton has been placed to the internal surface of water pump box, and water pump heater is located the water pump box. Structure more than adopting can completely cut off outside low temperature and pass to the water pump through water pump box body wall on, in addition, continuously heat the inside air of box through water pump heater for water in the water pump can not freeze, is in the state that can flow, guarantees that the water pump does not receive the interference of extremely cold environment.

Preferably, the third heating unit includes linear heater, aluminium foil, glass fiber adhesive tape, insulation support, the aluminium foil laminates with the water pipe lateral surface mutually, and linear heater places along the axis direction of water pipe, and the parcel of the linear heater outside has the aluminium foil, and the linear heater outside has still wrapped up the glass fiber adhesive tape, and the whole cover of water pipe that has aluminium foil, linear heater and glass fiber adhesive tape is located in insulation support. Through the setting of above structure, can reduce extremely cold environment to the influence of water pipe by at utmost, avoid the water pipe because of freezing the rupture, guarantee that the rivers in the water pipe can normally flow.

Preferably, the water supply unit further comprises a hydraulic motor, one end of the hydraulic motor is connected with the electromagnetic valve, the other end of the hydraulic motor is connected with the water pump, a filter is arranged between the water pump and the water tank, one end of the water pump is connected with the filter, and the other end of the water pump is connected with a water pipe; one side of the water tank is connected with the filter, and the other side of the water tank is connected with a safety valve.

Preferably, an oil pipe is arranged between the hydraulic motor and the electromagnetic valve.

Preferably, the water pump further comprises a three-way pipe, one end of the three-way pipe is communicated with the water outlet end water pipe of the water pump, one end of the three-way pipe is communicated with the safety valve, and the other end of the three-way pipe is connected with the one-way valve.

Preferably, the other end of the one-way valve is connected with a pressure control two-way valve.

Preferably, the air supply unit comprises an air compressor and an air compressor air bag, and the air compressor air bag are connected through an air pipe.

Preferably, the drilling machine power head is further included, the inlet end of the dust removal pipeline is located at the top of the drilling machine power head, and the water supply unit is connected with the inlet end of the dust removal pipeline through a water pipe and an air bag of an air compressor respectively through an air pipe.

Drawings

FIG. 1 is a schematic diagram of the operation of a wet dust removal system used in an extremely cold condition according to the present invention;

FIG. 2 is a schematic structural view of a first heating unit according to the present invention;

FIG. 3 is a schematic structural view of a second heating unit according to the present invention;

FIG. 4 is a schematic structural view of a third heating unit according to the present invention;

the reference numerals in the schematic drawings illustrate:

1. a water supply unit; 4. an electromagnetic valve; 5. a hydraulic motor; 6. an oil pipe; 7. a water pump; 8. a water tank; 9. a filter; 10. a safety valve; 11. a water pipe; 12. a three-way pipe; 13. a one-way valve; 14. a pressure controlled two-way valve; 15. a drilling machine power head; 16. an inlet end of a dust removal pipeline;

2. an air supply unit; 21. an air compressor; 22. an air compressor air bag; 23. an air tube;

3. a heating unit; 31. a first heating unit; 311. an engine; 312. a water tank heater; 32. a second heating unit; 321. a water pump box body; 322. a water pump heater; 323. heat preservation cotton; 33. a third heating unit; 331. a linear heater; 332. aluminum foil; 333. a fiberglass tape; 334. an insulating sleeve.

Detailed Description

For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the utility model, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the utility model without affecting the effect and the achievable purpose of the utility model. Meanwhile, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description only, and are not used to limit the implementable scope, and the relative relationship changes or adjustments may be considered to be within the implementable scope of the present invention without substantial technical changes; in addition, the embodiments of the present invention are not independent of each other, but may be combined.

The utility model discloses a wet dust removal system used under an extremely cold working condition, which comprises a water supply unit 1, wherein the water supply unit 1 comprises a water pump 7, a water tank 8 and a water pipe 11, the water tank 8 is used for storing water, the water tank 8 is provided with a first heating unit 31, the water pump 7 is used for pumping water from the water tank 8, the water pump 7 is provided with a second heating unit 32, the water pipe 11 is used for guiding the water pumped out by the water pump 7, and the water pipe 11 is provided with a third heating unit 33; the dust removing device also comprises an air supply unit 2 and a dust removing pipeline inlet end 16, wherein the water supply unit 1 and the air supply unit 2 are connected with the dust removing pipeline inlet end 16.

As shown in fig. 1, the water supply unit 1 includes a water tank 8, a water pump 7, and a hydraulic motor 5; one end of a hydraulic motor 5 is connected with an electromagnetic valve 4 through an oil pipe 6, in the utility model, the electromagnetic valve is a two-position four-way electromagnetic valve, the other end of the electromagnetic valve is connected with a water pump 7, a filter 9 is arranged between the water pump 7 and a water tank 8, one end of the water pump 7 is connected with the filter 9 through a water pipe 11, the other end of the water pump 7 is connected with a one-way valve 13 through a water pipe 11, one side of the water tank 8 is connected with the filter 9 through a water pipe 11, and the other side of the water tank is connected with a safety valve 10 through a water pipe 11.

In addition, the water supply unit 1 further comprises a three-way pipe 12, one end of the three-way pipe 12 is communicated with a water outlet end water pipe 11 of the water pump 7, one end of the three-way pipe is communicated with the safety valve 10, the other end of the three-way pipe is communicated with a one-way valve 13, and the other end of the one-way valve 13 is connected with a pressure control two-way valve 14. Through the arrangement of the mechanism, the water supply unit 1 can rapidly convey water flow to the air supply unit 2 for water and air are mixed to form water mist.

In the utility model, the air supply unit 2 comprises an air compressor 21 and an air compressor air bag 22, the air compressor 21 is connected with the air compressor air bag 22 through an air pipe 23, the air compressor air bag 22 is connected with the air inlet end of the pressure control two-way valve 14 through the air pipe 23, the air compressor air bag 22 is connected with the drilling machine power head 15 through the air pipe 23, and the water pipe 11 at the water outlet end of the pressure control two-way valve 14 is communicated with the air pipe 23 of the air compressor air bag 22 connected with the drilling machine power head 15 and used for mixing water and air to form water mist.

In extremely cold conditions, the water in the water tank 8 freezes, which is a very serious problem for wet dedusting systems, for which reason it is necessary to keep the water tank warm. In the present invention, as shown in fig. 2, the first heating unit 31 includes an engine 311, a water pipe 11 and a radiator heater 312, wherein one end of the water pipe 11 is connected to a port on the engine body, and the other end is connected to the radiator heater 312; when the drilling machine works, hot water generated by the work of the engine 311 is introduced into the water tank heater 312 placed in the water tank 8 through the port on the engine body and the water pipe 11, and the water in the water tank 8 is continuously heated by the water tank heater 312, so that the water in the water tank 8 is always warm water, freezing cannot occur, the flow of the water is blocked, and the whole wet dust removal system can normally run.

The water pump 7 plays an important role in a wet dust removal system, but in an extremely cold environment, the water pump 7 is likely to freeze to cause shutdown, and therefore, the water pump 7 must be ensured not to be interfered by the external environment. In the utility model, as shown in fig. 3, the second heating unit 32 comprises a water pump box 321, a water pump heater 322 and heat-insulating cotton 323, the heat-insulating cotton 323 is arranged on the bottom, the inner side wall and the box cover of the water pump box 321, and the water pump heater 322, the water pump 7 and the hydraulic motor 5 are all arranged in the water pump box 321; because the heat preservation cotton 323 has all been placed to water pump box 321 inside, on heat preservation cotton 323 can completely cut off outside low temperature and pass to water pump 7 through water pump box 321 wall, in addition, last heating the inside air of box through water pump heater 322 for water in the water pump 7 can not freeze, is in the state that can flow, guarantees that water pump 7 still can normal operating under extremely cold environment.

In fact, besides the water pump 7 and the water tank 8, the water pipe 11 is also an important loop affecting the water flow. If the protection of the water pipe 11 is neglected, the extremely cold environment will freeze the water pipe 11, causing the frozen water pipe to break off when the drilling machine is started. In view of this situation, in the present invention, as shown in fig. 4, the third heating unit 33 includes a linear heater 331, an aluminum foil 332, a glass fiber tape 333, and an insulating sleeve 334, wherein the first layer is formed by adhering the aluminum foil 332 to the outer wall of the water pipe 11 to wrap the water pipe 11, the second layer is formed by placing the linear heater 331 along the axial direction of the water pipe, the third layer is formed by wrapping the linear heater 331 with the aluminum foil 332, the fourth layer is formed by wrapping the water pipe 11 along the axial direction with the glass fiber tape 333, and finally, the entire wrapped water pipe 11 is inserted into the insulating sleeve 334. The water pipe 11 with the structure can resist the influence of extremely cold environment to a greater extent and ensure that water flow in the water pipe 11 can flow normally.

The operation of the wet dedusting system of the present invention is described in detail below:

when the drilling machine works, the electromagnetic valve 4 is powered through a control knob in a cab, then a valve port of the electromagnetic valve 4 is opened, hydraulic oil enters the hydraulic motor 5 through the electromagnetic valve 4 and the oil pipe 6 to drive the water pump 7 to rotate, at the moment, the water pump 7 sucks water from the water tank 8 through the water pipe 11 and the filter 9, then the water reaches an air outlet of the air compressor air bag 22 through the water pipe 11, the one-way valve 13 and the pressure control two-way valve 14 and is mixed with compressed air generated by the air compressor air bag 22 to form water mist, the water mist enters the power head 15 of the drilling machine through the inlet end 16 of the dust removal pipeline, finally reaches a nozzle at the bottom of a drill hole through a drill rod and a drill bit and is mixed with dust to form slurry, and the slurry flows to the ground from the air port to realize dust removal.

When the drilling machine is in punching operation, the current of the electromagnetic valve 4 can be steplessly changed by changing the position of the control knob, so that the opening degree of the valve port of the electromagnetic valve 4 is changed, the rotating speed of the hydraulic motor 5 and the water pump 7 is controlled, and the spraying function of different water quantities is realized. When the drilling operation is finished, the control knob is turned off, the hydraulic motor 5 and the water pump 7 stop working, and water is not continuously sprayed into the power head 15 of the drilling machine.

In the utility model, if water needs to be continuously sprayed out from the power head 15 of the drilling machine, the air compressor 21 is required to be always in a working state, so that compressed air generated by an air bag 22 of the air compressor can enter the pressure control two-way valve 14 through the air pipe 23, the compressed pressure controls a spring inside the two-way valve 14, the valve port of the two-way valve is opened, and water flow can enter the power head 15 of the drilling machine through the pressure control two-way valve 14. If the air compressor 21 is stopped, the pressure-controlled two-way valve 14 will be closed and no water will be delivered to the drill unit head 15 even if the hydraulic motor 5 and the water pump 7 are running, at which time water will flow back to the water tank 8 through the water line 11 and the safety valve 10.

It should be noted that, when the drilling machine needs to stop working, the hydraulic motor 5 and the water pump 7 must be turned off first, and then the air compressor 21 is turned off, so that the water flow in the air pipe 23 can be completely blown clean by the compressed air, and the water flow is prevented from remaining in the air pipe 23 after the machine is stopped, so that under an extremely cold condition, the water freezes and freezes the whole air pipe, and the whole wet dust removal system loses effect.

The utility model has been described in detail hereinabove with reference to specific exemplary embodiments thereof. It will, however, be understood that various modifications and changes may be made without departing from the scope of the utility model as defined in the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to be illustrative of the state of the art as developed and the meaning of the present technology and is not intended to limit the scope of the utility model or the application and field of application of the utility model.

More specifically, although exemplary embodiments of the utility model have been described herein, the utility model is not limited to these embodiments, but includes any and all embodiments modified, omitted, combined, e.g., between various embodiments, adapted and/or substituted, as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the utility model should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims

1. A wet dedusting system for use under extremely cold working condition, which is characterized by comprising

The water supply system comprises a water supply unit (1), wherein the water supply unit (1) comprises a water pump (7), a water tank (8) and a water pipe (11), the water tank (8) is used for storing water, the water tank (8) is provided with a first heating unit (31), the water pump (7) is used for pumping water from the water tank (8), the water pump (7) is provided with a second heating unit (32), the water pipe (11) is used for draining the water pumped out by the water pump (7), and the water pipe (11) is provided with a third heating unit (33); and

the dust removal device comprises an air supply unit (2) and a dust removal pipeline inlet end (16), wherein the water supply unit (1) and the air supply unit (2) are connected with the dust removal pipeline inlet end (16).

2. A wet scrubbing system for extreme cold conditions, as claimed in claim 1, wherein said first heating unit (31) comprises an engine (311), a water pipe (11) and a radiator heater (312), the water pipe (11) being connected at one end to a port on the engine block and at the other end to the radiator heater (312).

3. The wet dust removal system for the extremely cold conditions as recited in claim 1, wherein the second heating unit (32) comprises a water pump box body (321), a water pump heater (322) and heat insulation cotton (323), the heat insulation cotton (323) is placed on the inner surface of the water pump box body (321), and the water pump heater (322) is located in the water pump box body (321).

4. The wet dedusting system for the extremely cold working condition according to claim 1, wherein the third heating unit (33) comprises a linear heater (331), an aluminum foil (332), a glass fiber adhesive tape (333) and an insulating sleeve (334), the aluminum foil (332) is attached to the outer side surface of the water pipe (11), the linear heater (331) is placed along the axial direction of the water pipe (11), the aluminum foil (332) is wrapped on the outer side of the linear heater (331), the glass fiber adhesive tape (333) is further wrapped on the outer side of the linear heater (331), and the water pipe (11) with the aluminum foil (332), the linear heater (331) and the glass fiber adhesive tape (333) is integrally sleeved in the insulating sleeve (334).

5. The wet dust removal system for the extremely cold working condition according to claim 1, wherein the water supply unit (1) further comprises a hydraulic motor (5), one end of the hydraulic motor (5) is connected with an electromagnetic valve (4), the other end of the hydraulic motor is connected with a water pump (7), a filter (9) is arranged between the water pump (7) and the water tank (8), one end of the water pump (7) is connected with the filter (9), and the other end of the water pump is connected with a water pipe (11); one side of the water tank (8) is connected with the filter (9), and the other side is connected with a safety valve (10).

6. A wet dedusting system for extremely cold conditions according to claim 5, characterized in that an oil pipe (6) is arranged between the hydraulic motor (5) and the electromagnetic valve (4).

7. The wet dust removal system for the extremely cold conditions is characterized by further comprising a three-way pipe (12), wherein one end of the three-way pipe (12) is communicated with a water outlet end water pipe (11) of the water pump (7), one end of the three-way pipe is communicated with the safety valve (10), and the other end of the three-way pipe is connected with a one-way valve (13).

8. A wet dust removal system for use in extremely cold conditions, as claimed in claim 7, wherein a pressure controlled two-way valve (14) is connected to the other end of the one-way valve (13).

9. A wet dedusting system for use in extreme cold conditions as claimed in claim 1, wherein the air supply unit (2) comprises an air compressor (21) and an air compressor air bag (22), and the air compressor (21) and the air compressor air bag (22) are connected through an air pipe (23).

10. The wet dust removal system for the extremely cold working conditions is characterized by further comprising a drilling machine power head (15), wherein the dust removal pipeline inlet end (16) is located at the top of the drilling machine power head (15), and the water supply unit (1) is connected with the dust removal pipeline inlet end (16) through a water pipe (11) and an air compressor air bag (22) through an air pipe (23).