Pre-preparation bin for preparation system of fire preventing and extinguishing inhibitor solution

Abstract

The utility model discloses a pre-preparation bin for a preparation system of a fire preventing and extinguishing inhibitor solution. The pre-preparation bin is provided with a granular material inlet and a water injection port; a mechanical stirring unit is arranged in the pre-mixing bin; the bottom of the pre-mixing bin is provided with a discharge port, the discharge port is connected with a mixed liquid conveying pipeline, the mixed liquid conveying pipeline is provided with a discharge valve, and the pipeline at the rear end of the discharge valve is provided with a tee joint communicated with a backflushing water injection port and a conveying pump. The device solves the problems that in the preparation process of the inhibitor in the prior art, due to the fact that the water absorption performance of materials is high, the solution proportion concentration cannot be controlled, and circulation of the materials among the units is not changed. Accurate proportioning of the stopping agent solution is achieved, production safety is guaranteed, the solution preparation process is optimized, the situations such as material waste are avoided, and the stopping agent preparation device is higher in safety and popularization value.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of underground fire prevention and extinguishing equipment, and particularly relates to a pre-preparation bin for a fire prevention and extinguishing inhibitor solution preparation system. BACKGROUND

[0002] The fire prevention and extinguishing means for residual coal is mainly spraying the inhibitor, and the inhibitor solution is prepared by adding a certain amount of water to the granular or sheet-shaped solid inhibitor according to the concentration requirement, and then spraying the inhibitor solution to the residual coal through the inhibitor pump. The inhibitor preparation means in the prior art usually temporarily stores the inhibitor granules in the bin, lifts the quantitative granules to the preparation tank when preparation is needed, and adds water to the preparation tank for stirring to form the inhibitor solution with a certain concentration. Specifically, the automatic liquid preparation device for the inhibitor fire prevention and extinguishing system disclosed in Chinese patent CN214635642U can realize the preparation of the inhibitor solution to a certain extent, but cannot solve the problem of storing and transporting the inhibitor in the coal mine using mechanical equipment. The inhibitor has strong water absorption, and the existing inhibitor storage method and technology and the existing equipment cannot realize the automatic transportation of the inhibitor using mechanical equipment, and the inhibitor solution cannot be prepared. The existing equipment has poor applicability, high failure rate and other significant drawbacks in actual use.

[0003] Specifically, the granules for preparing the inhibitor are usually magnesium chloride, calcium chloride and modifiers, etc. When the materials are stored, that is, when the above-mentioned materials are temporarily stored in the bin, the water absorption of the materials will cause the surface layer of the inhibitor in the bin to absorb water and deliquesce. If the storage time exceeds one day, part of the inhibitor stored in the bin will deliquesce due to water absorption. The inhibitor slurry that deliquesces due to water absorption is mixed with the inhibitor that does not deliquesce, forming a mixture of slurry with a certain shaping effect and solid particles, which has a physical state similar to the water and sand mixture used for sand sculpture. The inhibitor at the bottom of the bin begins to appear caking phenomenon under the dual action of deliquescence and pressure, which makes the inhibitor lose its fluidity, that is, the fluidity of solid particles, similar to the fluidity of dry sand. The phenomenon of difficult feeding or even impossible feeding occurs, and in severe cases, the equipment may even be damaged.

[0004] In actual use, due to the large amount of inhibitor used in the well, usually a team needs to prepare dry mixed materials needed in a long time in advance according to the amount, and then send the mixed materials to the preparation storage tank when needed, add water according to the proportion, and prepare the sprayable inhibitor solution. Due to the high water absorption of the inhibitor and the high water content in the air required for dust prevention in the coal mine, it is necessary to have high requirements for the sealing of the storage premix bin and the conveying equipment. Due to the characteristics of the storage bin and the conveying equipment, it is impossible to achieve complete sealing. In this case, the moisture absorption and deliquescence of the solid material become inevitable. Due to the wet mixed material, on the one hand, it is difficult to lift the material, and even impossible to feed; on the other hand, even if part of the material can be conveyed, due to the wet mixed material has been shaped and caked, and the caked inhibitor takes too long to dissolve, resulting in large deviation of the concentration of the inhibitor solution, so it is impossible to guarantee the accuracy of the solution proportioning, that is, the concentration of the inhibitor solution is uncontrollable, too thin will result in low fire prevention effect, which is not conducive to production safety, and too high will easily block the pipe. Therefore, there is currently no corresponding solution for storing inhibitor materials in the well, and manual feeding and preparation are mainly used, which causes great waste of productivity. Practical new type content

[0005] The purpose of the present application is to overcome the shortcomings of the prior art, provide a pre-preparation bin for a fire extinguishing and preventing inhibitor solution preparation system, which has a simple structure, can shorten the preparation time of the inhibitor solution, improve the preparation efficiency, realize accurate proportioning of the inhibitor solution, and is easy to use.

[0006] The fire extinguishing and preventing inhibitor solution preparation system comprises a lifting and feeding mechanism, a pre-preparation bin and a preparation storage tank.

[0007] The pre-preparation bin of the present application is a bin body provided with an inhibitor inlet at the top, and a discharge conveying pipeline is connected to the lower part of the bin body.

[0008] The effect achieved by this is that the inhibitor enters the pre-preparation bin, water is added, and a mixed liquid of the inhibitor and water with a certain flowability is directly formed, which can be conveyed by a conveying pump.

[0009] A mechanical stirring unit is arranged in the pre-preparation bin.

[0010] The mechanical stirring unit is used to improve the flowability of the inhibitor mixed liquid during preparation and conveying to the subsequent section.

[0011] The utility model discloses an advantageous effect is: the utility model solves the prior art in the process of inhibitor configuration, the solution ratio concentration of the problem that cannot be controlled because of the strong water absorption of material, and the flow of material between each unit is invariable and the inhibitor water absorption agglomerates and the solution time is too long even cannot use after. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the implementation mode structure schematic drawing of the pre-configuration bin of the configuration system of fire extinguishing inhibitor solution of the utility model;

[0013] Reference signs:

[0014] 1 - lifting feeding mechanism 2 - pre-configuration bin 3 - configuration storage tank 4 - water inlet

[0015] 21 - mechanical stirring unit 22 - discharge valve 23 - delivery pump 24 - discharge conveying pipeline 25 - backflushing water inlet

[0016] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the drawings. DETAILED DESCRIPTION

[0017] Reference Figure 1 The utility model discloses a configuration system of fire extinguishing inhibitor solution, including lifting feeding mechanism 1, pre-configuration bin 2 and configuration storage tank 3.

[0018] The pre-configuration bin 2 of the utility model is a bin body with inhibitor inlet in the upper portion, and the lower portion of the bin body is connected with a discharge conveying pipeline, wherein the discharge conveying pipeline is provided with a discharge valve 22, and a backflushing water inlet 25 and a delivery pump 23 for discharging are sequentially arranged on the rear end pipeline of the discharge valve 22.

[0019] The effect realized by this is that after the inhibitor enters the pre-configuration bin 2, water is added, directly forming a mixed solution of the inhibitor and water with certain fluidity, which can be conveyed by the delivery pump 23.

[0020] The pre-configuration bin 2 is provided with a mechanical stirring unit 21.

[0021] The mechanical stirring unit 21 is used to improve the fluidity of the inhibitor mixed solution during the preparation process and when conveying to the subsequent section.

[0022] The pre-provisioning bin 2 is provided with a discharge port, and a discharge conveying pipe 24 is connected to the discharge port.

[0023] Further, the pre-provisioning bin 2 is connected to a configuration tank 3 through the discharge conveying pipe 24, and the retarder mixed solution in the pre-provisioning bin 2 is pumped into the configuration tank 3 through the conveying pump 23.

[0024] The effect achieved thereby is that the conveying pump 23 pumps the retarder mixed solution in the pre-provisioning bin 2 into the configuration tank 3, and after secondary water addition, a retarder solution with appropriate concentration is formed and directly used for fire extinguishing and spraying.

[0025] Embodiment 1, with reference to the accompanying drawings Figure 1 The pre-provisioning bin 2 is provided with a lifting feeding mechanism 1 at the feeding port thereof; and the lifting feeding mechanism 1 is connected to a solid material feeding barrel.

[0026] The lifting feeding mechanism 1 is a screw conveyor device.

[0027] The solid material feeding barrel is arranged above the screw conveyor device and communicates with the inner cavity chamber of the screw; and the solid material feeding barrel is in the form of a funnel with an open top surface.

[0028] The effect achieved thereby is that, for example, magnesium chloride, calcium chloride and other hygroscopic materials can be quantitatively added to the solid material feeding barrel when being supplemented into the pre-provisioning bin 2, and are fed in real time by the lifting feeding mechanism, that is, the effect of immediate use and quantitative feeding is achieved.

[0029] More specifically, the finished product of granular materials such as magnesium chloride and calcium chloride is in the form of powder particles or sheet shape packaged in a woven bag, and the woven bag packaging method itself has the characteristics of poor sealing, and is prone to damage during transportation and storage. In the extremely humid environment of a coal mine, it is prone to moisture absorption, deliquescence and caking, which causes the traditional equipment to be unable to be used normally. However, the screw in the device can preliminarily crush the caking during the conveying of the materials.

[0030] Embodiment 2, the mechanical stirring unit 21 comprises a motor, the motor is connected to a stirring shaft through a shaft coupling, and the stirring shaft is provided with stirring blades.

[0031] The effect achieved thereby is that the retarder mixed solution in the pre-provisioning bin 2 is fully stirred.

[0032] Further, the backflushing water inlet 25 is connected to an external water source through a water injection pipe.

[0033] The concentration tank 3 is provided with a liquid level meter and a concentration meter.

[0034] The liquid level meter and the concentration meter work together to monitor the concentration of water and material with the flow meter to prepare the retarder solution with appropriate concentration.

[0035] In the embodiment 3, the discharge valve 22 is arranged on the discharge pipeline 24 between the pre-preparation bin 2 and the delivery pump 23.

[0036] The backflushing water inlet 25 is arranged on the discharge pipeline 24 between the discharge valve 22 and the delivery pump 23.

[0037] The effects are as follows: 1. The backflushing water inlet 25 directly adds water into the pre-preparation bin 2 to prepare the retarder mixture; 2. Before the pre-preparation bin 2 pumps the retarder mixture into the concentration tank 3, water is added into the pre-preparation bin 2 to backflush the sediment in the pre-preparation bin 2 and increase the flowability of the sediment; 3. After the pre-preparation bin 2 delivers the retarder mixture into the concentration tank 3, the discharge valve 22 is closed, and clean water is injected into the delivery pump 23 to clean the delivery pump 23 and the discharge pipeline 24.

[0038] In the embodiment 4, the discharge valve 22 is arranged on the discharge pipeline 24 between the pre-preparation bin 2 and the delivery pump 23.

[0039] The backflushing water inlet 25 is arranged on the discharge pipeline 24 between the discharge valve 22 and the delivery pump 23, and is connected to the pre-preparation bin 2.

[0040] The effects are as follows: The backflushing water inlet on the pre-preparation bin 2 directly adds water into the pre-preparation bin 2 to prepare the retarder mixture.

[0041] The backflushing water inlet between the discharge valve 22 and the delivery pump 23 can inject clean water into the delivery pump 23 after the pre-preparation bin 2 delivers the retarder mixture into the concentration tank 3 to clean the delivery pump 23 and the discharge pipeline 24.

[0042] The water injection pipeline connected to the backflushing water inlet is provided with a stop valve and a flow meter.

[0043] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting and the claims.

[0044] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A pre-packaging bin for a configuration system of a fire extinguishing and extinguishing resistance agent solution, characterized in that, The pre-proportioning bin is a bin body provided with a retarder inlet at the top, and the lower part of the bin body is connected with a discharging conveying pipeline, and the discharging conveying pipeline is sequentially provided with a discharging valve, a back-flushing water injection port and a conveying pump for discharging; a mechanical stirring unit is arranged in the pre-proportioning bin. The pre-proportioning bin is connected with a configuration storage tank through the discharging conveying pipeline, and the retarder mixed solution is pumped into the configuration storage tank through the conveying pump; the configuration storage tank is provided with a water inlet.

2. The pre-packaging bin for the configuration system of the fire extinguishing and preventing agent solution of claim 1, wherein, The mechanical stirring unit comprises a motor, the motor is connected with a stirring shaft through a shaft coupling, and the stirring shaft is provided with stirring blades.

3. The pre-packaging bin for the configuration system of the fire extinguishing and preventing agent solution of claim 1, wherein, A discharging valve is arranged on the discharging conveying pipeline between the pre-proportioning bin and the conveying pump, and the back-flushing water injection port is arranged on the discharging conveying pipeline between the discharging valve and the conveying pump.

4. The pre-packaging bin for the configuration system of the fire extinguishing and preventing agent solution of claim 3, wherein, A water injection port is further arranged on the pre-proportioning bin.

5. A pre-packaging bin for a configuration system of a fire extinguishing and preventing agent solution according to any one of claims 1, 3 or 4, characterized in that, The back-flushing water injection port and the water injection port are connected with an external water source through a water injection pipeline, and a stop valve and a flow meter are arranged on the water injection pipeline connected with the water injection port.

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