Mining composite gel fire preventing and extinguishing device

Abstract

The utility model relates to the technical field of mine composite gel fire preventing and extinguishing, in particular to a mine composite gel fire preventing and extinguishing device which comprises a quantitative feeding assembly and a discharging part, the quantitative feeding assembly comprises a cylindrical shell, the two ends of the upper portion of the cylindrical shell are each provided with a feeding port, and a discharging port is further formed in the middle of the cylindrical shell; a rotating shaft is arranged in the cylindrical shell in a penetrating mode in the axis direction, and the outer wall of the rotating shaft is fixedly connected with a two-way spiral auger blade with a baffle as the boundary. The discharging part comprises a screw pump, a pump feeding port of the screw pump is connected with a discharging port of the quantitative feeding assembly, and a slurry outlet of the screw pump is connected with an external pipeline; according to the utility model, feeding is carried out through the positive and negative spiral augers, and meanwhile, accurate proportioning of a high-molecular composite fire extinguishing material and a high-molecular composite coagulant is realized by designing different coaxial screw pitches, so that stable and continuous high-pressure discharging is realized; meanwhile, under the cooperation of the screw pump and the water curtain, the high-molecular composite fire extinguishing material and the high-molecular composite coagulant material can be fully mixed.

Description

Technical field:

[0001] The utility model relates to the technical field of composite gel fire prevention and extinguishing for mining, in particular to a composite gel fire prevention and extinguishing device for mining. Background technology:

[0002] Composite gel fire prevention and extinguishing device is a supporting equipment of the composite gel fire prevention and extinguishing system. It plays a role of fire prevention and fire extinguishing by using the composite gel fire prevention and extinguishing device to inject polymer composite gel at the glue point underground. The main raw materials of the composite gel are polymer composite fire extinguishing materials and polymer composite coagulant materials, which are discharged and used after a certain ratio and sufficient mixing. The current composite gel fire prevention and extinguishing devices are mostly mixed by pumps and boxes, and the gas source is used as the power to discharge the materials. There are problems such as uneven proportions, uneven mixing, and unstable discharge. Utility model content:

[0003] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model intends to provide a composite gel fire extinguishing device for mining with precise component ratio, sufficient and uniform mixing, and stable and continuous discharge.

[0004] To achieve the above-mentioned purpose, the utility model provides a mining composite gel fire extinguishing device, including a quantitative feeding assembly and a discharging part. The quantitative feeding assembly includes a cylindrical shell, and a feed port is respectively opened at both ends of the upper part of the cylindrical shell. A baffle with a through hole is fixedly connected to the middle part of the cylindrical shell, and a discharge port is also opened in the middle part of the cylindrical shell; a rotating shaft is passed through the cylindrical shell along the axial direction, the rotating shaft passes through the through hole of the baffle and is gap-matched with the inner wall of the through hole of the baffle, and a bidirectional spiral auger blade bounded by the baffle is fixedly connected to the outer wall of the rotating shaft; the discharge part includes a screw pump, the pump feed port of the screw pump is connected to the discharge port of the quantitative feeding assembly, and the slurry outlet of the screw pump is connected to an external pipeline; the quantitative feeding assembly and the screw pump are driven by a power device.

[0005] Furthermore, the slurry outlet is a funnel-shaped structure, and the slurry outlet is also provided with a valve.

[0006] Furthermore, the feed ports at both ends of the upper portion of the cylindrical shell are respectively connected to hoppers, and the lower portions of the two hoppers are respectively connected to the feed ports at both ends of the upper portion of the cylindrical shell.

[0007] Furthermore, the auger blades on both sides of the baffle have equal outer diameters and different pitches, the cylindrical shell feed port on the side with a larger pitch is connected to the first hopper, and the cylindrical shell feed port on the side with a smaller pitch is connected to the second hopper.

[0008] Furthermore, a preset number of water curtain nozzles are arranged on the channel connecting the pump feed port and the discharge port of the quantitative feeding assembly, and the preset number of water curtain nozzles are arranged in a ring around the channel wall; the water curtain nozzles are connected to the water source through a water pipe with a water valve; when the water valve is a passage, the preset number of water curtain nozzles spray water to form a circular water curtain.

[0009] Furthermore, the power device is a double-headed explosion-proof motor, one end of the explosion-proof motor output shaft is connected to the main shaft of the screw pump through a coupling, and the other end of the explosion-proof motor output shaft is connected to a stepless speed regulator through a transmission chain, and the output end of the stepless speed regulator is connected to a rotating shaft that passes through the cylindrical shell along the axial direction.

[0010] The beneficial effects of the utility model are as follows: the device is suitable for different fire prevention and extinguishing working conditions underground, and can automatically mix and discharge materials, which greatly reduces the labor intensity of the staff and improves work efficiency. It provides effective prevention and control measures for spontaneous combustion in coal mines, and will play a significant role in ensuring safe production in mines. The utility model uses forward and reverse spiral augers to feed materials, and at the same time, designs coaxial screws with different pitches to achieve precise proportioning of polymer composite fire extinguishing materials and polymer composite coagulants. The setting of the annular water curtain not only plays a role in lubrication but also plays a role in adding water; the design of the screw pump and the funnel-shaped slurry outlet realizes stable, continuous and high-pressure discharge. At the same time, with the cooperation of the screw pump and the water curtain, the polymer composite fire extinguishing materials and the polymer composite coagulant materials can be fully mixed. Description of the drawings:

[0011] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0012] Attached Figure 2 It is a structural schematic diagram of the quantitative feeding assembly of the utility model;

[0013] Attached Figure 3 It is a structural schematic diagram of the discharging part of the utility model;

[0014] In the attached figure: 1. first hopper, 2. quantitative feeding assembly, 3. second hopper, 4. stepless speed regulator, 5. transmission chain, 6. explosion-proof motor, 7. water curtain nozzle, 8. baffle, 9. slurry outlet, 10. screw pump, 11. pump feed inlet, 12. water pipe. Specific implementation method:

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in more detail below in conjunction with the accompanying drawings of the present invention.

[0016] In the description of the present invention, it should be understood that the description of the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] As attached Figure 1 , Attachment Figure 2 As shown, the composite gel fire extinguishing device for mining comprises a quantitative feeding assembly 2 and a discharging part, wherein the quantitative feeding assembly 2 comprises a cylindrical shell, wherein two ends of the upper part of the cylindrical shell are respectively provided with a feeding port, a baffle 8 with a through hole is fixedly connected to the middle part of the cylindrical shell, and a discharging port is also provided in the middle part of the cylindrical shell; a rotating shaft is passed through the cylindrical shell along the axial direction, the rotating shaft passes through the through hole of the baffle 8 and is gap-matched with the inner wall of the through hole of the baffle 8, and a bidirectional spiral auger blade bounded by the baffle 8 is fixedly connected to the outer wall of the rotating shaft; the discharging part comprises a screw pump 10, a pump feeding port 11 of the screw pump 10 is connected to the discharging port of the quantitative feeding assembly 2, and a slurry outlet 9 of the screw pump 10 is connected to an external pipeline; the quantitative feeding assembly 2 and the screw pump 10 are driven by a power device.

[0019] The slurry outlet 9 is a funnel-shaped structure, and the slurry outlet 9 is also provided with a valve.

[0020] The feed ports at both ends of the upper part of the cylindrical shell are respectively connected to hoppers, and the lower parts of the two hoppers are respectively connected to the feed ports at both ends of the upper part of the cylindrical shell.

[0021] The outer diameters of the auger blades on both sides of the baffle 8 are equal and the pitches are different. The hopper on the side with a larger pitch is the first hopper 1 , and the hopper on the side with a smaller pitch is the second hopper 3 .

[0022] As attached Figure 3As shown, a preset number of water curtain nozzles 7 are arranged on the channel connecting the pump feed port 11 and the discharge port of the quantitative feeding assembly 2, and the preset number of water curtain nozzles 7 are arranged in a ring around the channel wall; the water curtain nozzles 7 are connected to the water source through a water pipe 12 with a water valve; when the water valve is a passage, the preset number of water curtain nozzles 7 spray water to form a ring-shaped water curtain.

[0023] The power device is a double-headed explosion-proof motor 6, one end of the output shaft of the explosion-proof motor 6 is connected to the main shaft of the screw pump 10 through a coupling, and the other end of the output shaft of the explosion-proof motor 6 is connected to a stepless speed regulator 4 through a transmission chain 5, and the output end of the stepless speed regulator 4 is connected to a rotating shaft passing through the cylindrical shell along the axial direction.

[0024] In order to make the equipment structure more compact, the composite gel fire extinguishing device for mining in the present application designs the quantitative feeding assembly 2 and the discharging part as an upper and lower structure, so that the discharge of the quantitative feeding assembly 2 can quickly fall into the discharging part under the action of pressure and gravity, plus the water sprayed by the water curtain.

[0025] In order to cooperate with the auger blades, the quantitative feeding shell is designed as a cylindrical shell, and a feed port is respectively provided at both ends of the upper part of the cylindrical shell, and a baffle 8 with a through hole is fixedly connected in the middle of the cylindrical shell, and a discharge port is provided in the middle of the cylindrical shell; the feed ports at both ends of the upper part of the cylindrical shell can be respectively connected to an external feeding device or directly connected to a hopper. In order to make the structure more compact, the present application preferably connects a hopper. The lower parts of the two hoppers are respectively connected to the feed ports at both ends of the upper part of the cylindrical shell. The auger blades on both sides of the baffle 8 have equal outer diameters and different pitches. The feed port of the cylindrical shell on the side with a larger pitch is connected to the first hopper 1, and the feed port of the cylindrical shell on the side with a smaller pitch is connected to the second hopper 3; the first hopper 1 contains a polymer composite coagulant, and the second hopper 3 contains a polymer composite colloid fire extinguishing agent.

[0026] In order to ensure that the feeding of the polymer composite fire extinguishing material and the polymer composite coagulant does not affect each other and achieves precise proportioning, a rotating shaft is passed through the cylindrical shell along the axial direction, the rotating shaft passes through the through hole of the baffle 8 and cooperates with the inner wall gap of the through hole of the baffle 8, and the outer wall of the rotating shaft is fixedly connected with a bidirectional spiral auger blade bounded by the baffle 8; the polymer composite fire extinguishing material and the polymer composite coagulant fall into the discharge port of the quantitative feeding assembly 2 under the drainage of the baffle 8.

[0027] In the prior art, high-pressure gas is often used to blow out the mixed material. In the present application, in order to make the discharge more stable, a screw pump 10 is used for pumping; the pump feed port 11 of the screw pump 10 is connected to the discharge port of the quantitative feeding assembly 2, and the slurry outlet 9 of the screw pump 10 is connected to an external pipeline; the slurry outlet 9 is a funnel-shaped structure, and the funnel-shaped design makes the discharge more continuous and the pressure greater.

[0028] The outer diameters of the auger blades on both sides of the baffle 8 are equal and the pitches are different. The feed port of the cylindrical shell on the side with a larger pitch is connected to the first hopper 1, and the feed port of the cylindrical shell on the side with a smaller pitch is connected to the second hopper 3. The pitch ratio is designed according to the ratio of the material proportions to achieve precise proportioning under the same speed rotation.

[0029] In order to make the feeding match the discharge of the screw pump 10 and avoid the situation where the feeding cannot keep up with the discharge speed, a power system is used to provide power, and a stepless speed regulator 4 is provided to ensure that the material in the quantitative feeding assembly 2 is always gathered from both sides to the middle; the rotation speed of the main shaft of the screw pump 10 is adapted to the rotation speed of the rotating shaft in the cylindrical shell.

[0030] The utility model uses forward and reverse spiral auger feeding, and realizes the precise proportion of polymer composite fire extinguishing material and polymer composite coagulant by designing coaxial different pitches. The setting of the annular water curtain plays the role of lubrication and water addition. The design of the screw pump 10 and the funnel-shaped slurry outlet 9 realizes stable, continuous and high-pressure discharge. At the same time, the cooperation of the screw pump 10 and the water curtain can fully mix the polymer composite fire extinguishing material and the polymer composite coagulant.

[0031] Except for the technical features described in the specification, all other technical features are known to those skilled in the art.

Claims

1. A composite gel fire extinguishing device for mining, comprising a quantitative feeding assembly (2) and a discharging part, characterized in that The quantitative feeding assembly (2) comprises a cylindrical shell, wherein two ends of the upper part of the cylindrical shell are respectively provided with a feed port, a baffle (8) provided with a through hole is fixedly connected to the middle part of the cylindrical shell, and a discharge port is provided in the middle part of the cylindrical shell; a rotating shaft is passed through the cylindrical shell along the axial direction, the rotating shaft passes through the through hole of the baffle (8) and is gap-matched with the inner wall of the through hole of the baffle (8), and a bidirectional spiral auger blade bounded by the baffle (8) is fixedly connected to the outer wall of the rotating shaft; the discharge part comprises a screw pump (10), the pump feed port (11) of the screw pump (10) is connected to the discharge port of the quantitative feeding assembly (2), and the slurry outlet (9) of the screw pump (10) is connected to an external pipeline; The quantitative feeding assembly (2) and the screw pump (10) are driven by a power device.

2. The composite gel fire extinguishing device for mining as claimed in claim 1, characterized in that The slurry outlet (9) is a funnel-shaped structure, and the slurry outlet (9) is also provided with a valve.

3. The composite gel fire extinguishing device for mining as claimed in claim 1, characterized in that The feed ports at both ends of the upper part of the cylindrical shell are respectively connected to hoppers, and the lower parts of the two hoppers are respectively connected to the feed ports at both ends of the upper part of the cylindrical shell.

4. The composite gel fire extinguishing device for mining as claimed in claim 3, characterized in that The auger blades on both sides of the baffle (8) have the same outer diameter and different pitches; the hopper on the side with the larger pitch is the first hopper (1), and the hopper on the side with the smaller pitch is the second hopper (3).

5. The composite gel fire extinguishing device for mining as claimed in claim 1, characterized in that A preset number of water curtain nozzles (7) are arranged on the channel connecting the pump feed port (11) and the discharge port of the quantitative feeding assembly (2), and the preset number of water curtain nozzles (7) are arranged in a ring around the channel wall; the water curtain nozzles (7) are connected to a water source through a water pipe (12) with a water valve; when the water valve is in passage, the preset number of water curtain nozzles (7) spray water to form a ring-shaped water curtain.

6. The composite gel fire extinguishing device for mining as claimed in claim 1, characterized in that The power device is a double-headed explosion-proof motor (6), one end of the output shaft of the explosion-proof motor (6) is connected to the main shaft of the screw pump (10) through a coupling, the other end of the output shaft of the explosion-proof motor (6) is connected to a stepless speed regulator (4) through a transmission chain (5), and the output end of the stepless speed regulator (4) is connected to a rotating shaft that passes through the cylindrical shell along the axial direction.

Images