Emergency fire extinguishing device for coal yard

Abstract

The coal yard emergency fire extinguishing device comprises a blocking and sealing system, a spraying system and a feeding system, wherein the blocking and sealing system comprises a first mixing device and a second mixing device, the first mixing device and the second mixing device are connected with a mixed valve group inlet end in parallel, a mixed valve group outlet end is connected with a first pump and a second pump in parallel, the first pump is connected with a first blocking and sealing spraying port, and the second pump is connected with a second blocking and sealing spraying port; the spraying system comprises a first pressure proportional mixer and a second pressure proportional mixer; the first pressure proportional mixer and the second pressure proportional mixer are further connected with the feeding system; a dilution water inlet end of the first pressure proportional mixer and a dilution water inlet end of the second pressure proportional mixer are connected with a pressurized water source; and outputs of the first pressure proportional mixer and the second pressure proportional mixer are connected with a spraying device through a third spraying port. The two mixing devices with the same structure realize uninterrupted operation of the blocking and sealing material, and the pressurization of the pump realizes the effect of remote conveying of A material and B material mixed spraying.

Description

Technical Field

[0001] This invention relates to the field of emergency fire extinguishing in coal mines, and specifically to an emergency fire extinguishing device for coal yards. Background Technology

[0002] When a fire occurs in a coal yard or when fire prevention work is being carried out, it is necessary to spray sealing materials on the internal structure of the coal blocks or to spray fire-prevention and extinguishing materials on the surface of the coal piles in the coal yard.

[0003] From the current on-site construction perspective, different equipment is required to carry out these two types of fire prevention and extinguishing operations. For example, spraying fire prevention and extinguishing materials requires specialized equipment for mixing components A and B, as well as dedicated spraying equipment. Spraying fire-stopping materials, on the other hand, requires specialized mixing devices and spraying equipment. Therefore, in emergency on-site operations, two sets of equipment need to be prepared simultaneously, which is cumbersome. Furthermore, existing fire-stopping material spraying equipment cannot meet the needs of continuous operation, and existing fire prevention and extinguishing material spraying equipment cannot be used for operations at remote locations within the coal yard.

[0004] Therefore, there is an urgent need to develop a device that can simultaneously perform continuous spraying of barrier materials and long-distance spraying of fire prevention and extinguishing materials during on-site operations. Summary of the Invention

[0005] To address the issues of 1. lack of continuous sealing operation devices and 2. lack of long-distance spraying capability for AB mixture coating, this invention provides a coal yard emergency fire extinguishing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coal yard emergency fire extinguishing device includes a sealing system for sealing material operations and a spraying system for fire extinguishing material operations.

[0008] The sealing system includes: a first mixing device and a second mixing device for mixing and stirring slurry and water. The first mixing device and the second mixing device are both connected in parallel to the inlet end of a mixing valve group. The outlet end of the mixing valve group is connected in parallel to a first pump and a second pump, respectively. The first pump is connected to a first sealing slurry nozzle, and the second pump is connected to a second sealing slurry nozzle. By adjusting the valves on the mixing valve group, the inflow at any inlet end of the mixing valve group corresponds to the outflow at all, part, or any outlet end of the mixing valve group.

[0009] The shotcrete system includes: a first pressure proportioning mixer for diluting material A and a second pressure proportioning mixer for diluting material B; the first and second pressure proportioning mixers are also connected to the feeding systems for materials A and B; the dilution water inlet of the first and second pressure proportioning mixers are both connected to a pressurized water source; the outputs of the first and second pressure proportioning mixers are connected to the spraying device through a third nozzle.

[0010] The pressurized water source is connected to the dilution water inlet of the first pressure proportioning mixer in sequence through the second high-pressure valve and the second pump.

[0011] The pressurized water source is connected to the dilution water inlet of the second pressure proportioning mixer in sequence through the first high-pressure valve, the first pump, and then the dilution water inlet of the second pressure proportioning mixer.

[0012] Furthermore, a first mixing valve and a second mixing valve are respectively provided between the mixing valve group and the first pump and the second pump; a first high-pressure valve and a second high-pressure valve are respectively provided between the pressurized water source and the first pump and the second pump.

[0013] Furthermore, the feeding system includes: a liquid adding device for material A or material B, wherein the output end of the liquid adding device is connected in parallel to a first adding valve and a second adding valve; the first adding valve is connected to a first pressure adding proportioning mixer, and the second adding valve is connected to a second pressure proportioning mixer.

[0014] Furthermore, the mixing valve assembly includes two inlets and two outlets, wherein the inlets are equipped with a first inlet valve and a second inlet valve, and the outlets are equipped with a first outlet valve and a second outlet valve; each inlet is connected to any one of the outlets.

[0015] Furthermore, the first and second sealing nozzles are respectively connected to the sealing spraying equipment.

[0016] Furthermore, an integrated valve base is provided between the first low-pressure valve and the first pressure proportional mixer, and between the second low-pressure valve and the second pressure proportional mixer, and the integrated valve assembly is provided with a base for installing the valve.

[0017] Furthermore, the first pressure proportional mixer and the second pressure proportional mixer are diaphragm-type pressure proportional mixers.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the uninterrupted operation of the sealing material is realized by using two identical mixing devices, the first and second mixing devices, and the remote conveying of material A and material B for spraying is also achieved by using the pressurization of the pump. Attached Figure Description

[0019] Figure 1This is a system diagram of the present invention.

[0020] In the figure, 11 is the first mixing device, 12 is the second mixing device, 2 is the mixing valve group, 21 is the first inlet valve, 22 is the second inlet valve, 23 is the first outlet valve, 24 is the second outlet valve, 31 is the first pump, 311 is the first mixing valve, 312 is the first high-pressure valve, 32 is the second pump, 321 is the second mixing valve, 322 is the second high-pressure valve, 41 is the first sealing nozzle, 42 is the second sealing nozzle, 5 is the integrated valve base, 61 is the first pressure proportioning mixer, 611 is the first low-pressure valve, 62 is the second pressure proportioning mixer, 621 is the second low-pressure valve, 7 is the third nozzle, 8 is the liquid adding device, 81 is the first adding valve, and 82 is the second adding valve. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 As shown, this application provides a coal yard emergency fire extinguishing device, including a sealing system and a shotcrete system;

[0023] The sealing system includes a first mixing device 11 and a second mixing device 12 for mixing and stirring slurry and water. Both the first mixing device 11 and the second mixing device 12 are connected in parallel to the inlet end of the mixing valve group 2. The outlet end of the mixing valve group 2 is connected in parallel to a first pump 31 and a second pump 32. The first pump 31 is connected to a first sealing slurry nozzle 41, and the second pump 32 is connected to a second sealing slurry nozzle 42. The first sealing slurry nozzle 41 and the second sealing slurry nozzle 42 are respectively connected to a sealing spraying device, specifically a handheld sealing spraying gun or similar equipment. Adjusting the valves on the mixing valve group 2 ensures that the inflow from any inlet end of the mixing valve group 2 corresponds to the outflow from all, part, or any outlet end of the mixing valve group 2. Further, a first mixing valve 311 and a second mixing valve 321 are respectively provided between the mixing valve group 2 and the first pump 31 and the second pump 32; a first high-pressure valve 312 and a second high-pressure valve 322 are respectively provided between the pressurized water source and the first pump 31 and the second pump 32. The mixing valve group 2 includes two inlets and two outlets. The inlets are equipped with a first inlet valve 21 and a second inlet valve 22, and the outlets are equipped with a first outlet valve 23 and a second outlet valve 24. Each inlet is connected to any one of the outlets.

[0024] The function of the mixing valve group 2 is to ensure that the slurry that has been mixed in any slurry mixing device can be discharged in a timely manner, and can flow to the first discharge valve 23 and / or the second discharge valve 24 as needed on site.

[0025] The first mixing device 11 and the second mixing device 12 are containers with a stirring device, which is a blade. A manual valve is provided at the bottom of the container for the slurry to flow out.

[0026] The shotcrete system includes a first pressure proportioning mixer 61 for diluting component A and a second pressure proportioning mixer 62 for diluting component B. The first and second pressure proportioning mixers 61 and 62 are also connected to a feeding system for components A and B. This feeding system includes a liquid adding device 8 for either component A or component B. The output of the liquid adding device 8 is connected in parallel to a first adding valve 81 and a second adding valve 82. The first adding valve 81 is connected to the first pressure proportioning mixer 61, and the second adding valve 82 is connected to the second pressure proportioning mixer 62. Specifically, the first and second pressure proportioning mixers 61 and 62 are diaphragm-type pressure proportioning mixers. When component A needs to be added, the first adding valve 81 is opened, the second adding valve 82 is closed, and component A is added to the first pressure proportioning mixer 61 through the liquid adding device 8. When component B needs to be added, the second adding valve 82 is opened, the first adding valve 81 is closed, and component B is added to the second pressure proportioning mixer 62 through the liquid adding device 8. The dilution water inlet of the first pressure proportioning mixer 61 and the dilution water inlet of the second pressure proportioning mixer 62 are both connected to a pressurized water source; the outputs of the first pressure proportioning mixer 61 and the second pressure proportioning mixer 62 are connected to the injection device through the third nozzle 7.

[0027] The liquid addition device 8 comprises a pump for conveying material A or material B, and a filtration device for material A and material B. The liquid addition device 8 also includes a flow meter for monitoring the actual volume of material A and material B flowing in.

[0028] The pressurized water source is connected to the dilution water inlet of the first pressure proportioning mixer 61 in sequence through the second high-pressure valve 322 and the second pump 32.

[0029] The pressurized water source is connected to the dilution water inlet of the second pressure proportional mixer 62 in sequence through the first high-pressure valve 312, the first pump 31, and then the dilution water inlet.

[0030] To facilitate better installation and on-site use of pressurized water sources and pressurized high-pressure water sources, an integrated valve base 5 is provided between the first low-pressure valve 611 and the first pressure proportional mixer 61, and between the second low-pressure valve 621 and the second pressure proportional mixer 62. The integrated valve base 5 is provided with a base for installing valves, and the valve base can be made of metal.

[0031] The working principle of this invention is as follows: By alternating between the first mixing device 11 and the second mixing device 12, when one mixing device is working, the other is used to discharge the mixed slurry, thereby achieving continuous and uninterrupted operation. By changing the opening and closing positions of the valves in the mixing valve group 2, the first blocking slurry nozzle 41 and the second blocking slurry nozzle 42 can also discharge slurry simultaneously, which can accelerate the progress of the project.

[0032] When it is necessary to seal off a coal yard, for nearby coal blocks, the municipal water pressure can be used directly. Due to the structural characteristics of the pressure proportioner, the water source flowing in at the corresponding pressure will be mixed with either material A or material B at the corresponding pressure. The diluted material A and material B are then mixed and flow out through the third nozzle 7. Finally, the mixing spray gun completes the mixing of the diluted material A and material B solutions. For coal blocks in distant coal yards, the first high-pressure valve 312 and the second high-pressure valve 322 can be opened, while the first low-pressure valve 611 and the second low-pressure valve 621 can be closed. The operation of the first pump 31 and the second pump 32 enables remote pressurization and long-distance transportation.

[0033] Therefore, through integrated design, this invention can not only achieve fire prevention and extinguishing at both long and short distances when carrying out fire prevention and extinguishing operations in coal yards, but also perform fire prevention and extinguishing by spraying grout at both long and short distances. During the fire prevention and extinguishing operation, the use of two identical mixing devices can not only achieve uninterrupted fire prevention and extinguishing, but also allow both spray nozzles to be fully opened in emergency situations, thereby accelerating the efficiency of spraying grout for fire prevention and extinguishing.

[0034] The present invention has been described above based on embodiments and variations. However, the embodiments described above are merely examples to facilitate understanding of the present invention and are not intended to limit the present invention. All variations, improvements, and equivalent substitutions made within the spirit and principles of the present invention and the scope of the claims should be included within the protection scope of the present invention. Furthermore, technical features not described as indispensable in this specification may be appropriately omitted.

Claims

1. A coal yard emergency fire extinguishing device, characterized in that: include, Barrier systems for barrier material operations and shotcrete systems for fire extinguishing material operations; The sealing system includes: a first mixing device (11) and a second mixing device (12) for mixing and stirring slurry and water. The first mixing device (11) and the second mixing device (12) are both connected in parallel to the inlet end of the mixing valve group (2). The outlet end of the mixing valve group (2) is connected in parallel to a first pump (31) and a second pump (32). The first pump (31) is connected to a first sealing slurry nozzle (41), and the second pump (32) is connected to a second sealing slurry nozzle (42). By adjusting the valves on the mixing valve group (2), the inflow of any one of the inlet ends of the mixing valve group (2) corresponds to the outflow of all, part, or any one of the outlet ends of the mixing valve group (2). The spraying system includes: a first pressure proportioning mixer (61) for diluting material A and a second pressure proportioning mixer (62) for diluting material B; the first pressure proportioning mixer (61) and the second pressure proportioning mixer (62) are also connected to the feeding system of material A and material B; the dilution water inlet of the first pressure proportioning mixer (61) and the dilution water inlet of the second pressure proportioning mixer (62) are both connected to a pressurized water source; the output of the first pressure proportioning mixer (61) and the second pressure proportioning mixer (62) are connected to the spraying device through a third nozzle (7); The pressurized water source passes through the second high-pressure valve (322), the second pump (32), and then connects to the dilution water inlet of the first pressure proportioning mixer (61); The pressurized water source passes through the first high-pressure valve (312), the first pump (31), and then is connected to the dilution water inlet of the second pressure proportioning mixer (62).

2. The emergency fire extinguishing device for coal yards according to claim 1, characterized in that: A first mixing valve (311) and a second mixing valve (321) are respectively provided between the mixing valve group (2) and the first pump (31) and the second pump (32); a first high-pressure valve (312) and a second high-pressure valve (322) are respectively provided between the pressurized water source and the first pump (31) and the second pump (32).

3. The emergency fire extinguishing device for coal yards according to claim 1, characterized in that, The feeding system includes: a liquid adding device (8) for material A or material B, the output end of which is connected in parallel to a first adding valve (81) and a second adding valve (82); the first adding valve (81) is connected to a first pressure proportional mixer (61), and the second adding valve (82) is connected to a second pressure proportional mixer (62).

4. The emergency fire extinguishing device for coal yards according to claim 1, characterized in that: The mixing valve group (2) includes two inlets and two outlets. The inlets are equipped with a first inlet valve (21) and a second inlet valve (22), and the outlets are equipped with a first outlet valve (23) and a second outlet valve (24). Each inlet is connected to any one of the outlets.

5. The emergency fire extinguishing device for coal yards according to claim 1, characterized in that: The first sealing nozzle (41) and the second sealing nozzle (42) are respectively connected to the sealing spraying equipment.

6. The emergency fire extinguishing device for coal yards according to claim 1, characterized in that: An integrated valve base (5) is provided between the first low-pressure valve (611) and the first pressure proportioner (61), and between the second low-pressure valve (621) and the second pressure proportioner (62). The integrated valve base (5) is provided with a base for installing the valve.

7. The emergency fire extinguishing device for coal yards according to claim 1, characterized in that: The first pressure proportional mixer (61) and the second pressure proportional mixer (62) are diaphragm pressure proportional mixers.

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