Recycling system for residual materials of expanded ammonium nitrate explosives

Abstract

The utility model discloses a recycling system for residual materials of expanded ammonium nitrate explosives, which belongs to the technical field of equipment for expanded ammonium nitrate explosives and comprises an expansion crystallizer, a vacuum filtration system, a filter component, a material collecting tank, a pumping device and a dynamic mixer which are sequentially communicated through pipelines and form a loop. When the residual materials are cleaned, the residual materials can be conveyed into the material collecting tank to be subjected to preliminary recycling treatment; and then the treated residual materials are transferred into the dynamic mixer through the pumping device so as to form a mixed solution which can be directly used by the expansion crystallizer, so that the whole set of equipment forms a closed loop, the utilization rate of unreacted materials is effectively improved, meanwhile, the cleaning solution can be prevented from being directly discharged to the outside, and the ecological protection effect is further achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of equipment for expanded ammonium nitrate explosive, and particularly relates to a recycling system for residual materials of expanded ammonium nitrate explosive. Background Art

[0002] During the preparation of liquid-mixed expanded ammonium nitrate explosive, it is necessary to continuously extract the water vapor generated during expansion from the inside of the expansion crystallizer through a vacuum filtration system, so that the inside of the expansion crystallizer can always be in a vacuum state to ensure that the expansion reaction can continue. When the vacuum filtration system is evacuating, the unreacted suspended particles inside the expansion crystallizer will also be synchronously extracted to the external environment. To avoid polluting the external environment, this gas is usually directly injected into a five-bag filter for gas filtration. Therefore, after the preparation work of the day is over, there are usually about 200 kg of residual materials remaining inside the five-bag filter. For the treatment of this part of the residual materials, usually, manual collection is carried out first, then the piled-up residual materials are transported to the designated waste disposal point, and finally, the remaining part of the residual materials is directly washed and discharged to the outside through flushing. This treatment method not only seriously wastes raw materials, increases the corresponding production and labor costs, but also has an impact on the ecological environment. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: how to provide a recycling system for residual materials of expanded ammonium nitrate explosive to improve the reuse rate of raw materials and thus save production costs.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is:

[0005] A recycling system for residual materials of expanded ammonium nitrate explosive includes an expansion crystallizer, a vacuum filtration system, a filtration component, a material collection tank, a pumping device, and a dynamic mixer that are connected in sequence by pipelines to form a loop.

[0006] Further, the filtration component includes at least one bag filter;

[0007] The filter is connected in series between the vacuum filtration system and the material collection tank through a pipeline.

[0008] Further, the diameter of the pipeline connecting the filtration component and the material collection tank is 50 mm to 100 mm.

[0009] Further, the discharge port of the filtration component is higher than the feed port of the material collection tank;

[0010] The pipeline connecting the filtration component and the material collection tank is a straight pipe.

[0011] Further, it further includes a flushing device;

[0012] The liquid outlet of the flushing device is communicated with the liquid inlet of the filtering component.

[0013] Further, it further includes a valve body;

[0014] The valve body is arranged on the pipeline connecting the filtering component and the material collection tank.

[0015] Further, the material collection tank includes a tank body and a stirring device;

[0016] The stirring end of the stirring device is arranged inside the tank body.

[0017] The beneficial effects of the present utility model are as follows: The recycling system for residual materials of expanded ammonium nitrate explosive provided by the present utility model can transport the residual materials to the material collection tank for preliminary recycling treatment when the residual materials need to be cleaned; then, the treated residual materials are transported to the dynamic mixer through the pumping device to form a mixed liquid that can be directly used by the expansion crystallizer, so that the whole set of equipment forms a closed loop, effectively improving the utilization rate of unreacted materials, and at the same time avoiding directly discharging the cleaning liquid into the outside world, thereby playing a role in protecting the ecology. Description of the Drawings

[0018] Figure 1 The figure shows the structural schematic diagram of the recycling system in the specific embodiment of the present utility model;

[0019] Figure 2 The figure shows Figure 1 the enlarged view of part A;

[0020] Label Description:

[0021] 1. Filtering component; 11. Filter;

[0022] 2. Material collection tank; 21. Tank body; 22. Stirring device;

[0023] 3. Pumping device;

[0024] 4. Dynamic mixer;

[0025] 5. Expansion crystallizer;

[0026] 6. Vacuum filtration system; 61. Vacuum pump; 62. Atmospheric condenser

[0027] 7. Valve body. Specific Embodiments

[0028] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the drawings.

[0029] The most crucial concept of the present utility model lies in: when cleaning the residual materials, first recycle the residual materials into the material collection tank; then transfer the processed residual materials to the dynamic mixer through a pumping device to form a mixed solution that can be directly used by the puffing crystallizer, so as to form a closed loop for the entire set of equipment, effectively improving the utilization rate of unreacted materials. At the same time, it can also avoid directly discharging the cleaning liquid into the outside world, thereby playing a role in protecting the ecology.

[0030] Please refer to Figures 1 to 2 , the recycling system for residual materials of expanded ammonium nitrate explosive provided by the present utility model includes an expanded crystallizer 5, a vacuum filtration system 6, a filtration component 1, a material collection tank 2, a pumping device 3, and a dynamic mixer 4 that are sequentially connected by pipelines and form a loop.

[0031] Specifically, the inside of the dynamic mixer 4 is filled with a mixture of an oil phase and an ammonium nitrate solution. By mixing the residual materials with the mixed solution, a raw material that can be directly used by the expanded crystallizer 5 is formed. To improve the mixing effect, the dynamic mixer 4 can also be provided with corresponding stirring equipment to continuously stir the mixed solution, so that the residual materials can be fully mixed with the mixed solution.

[0032] Preferably, the expanded crystallizer 5 of the present utility model has two discharge ports; the discharge port of each expanded crystallizer 5 is connected to the feed port of the corresponding filtration component 1; and the two filtration components 1 connected to the same expanded crystallizer 5 are also connected to each other; at the same time, the vacuum filtration system 6 is arranged between the two interconnected filtration components 1, so that the expanded crystallizer 5 can continuously maintain a vacuum state to ensure the normal progress of the expansion work; the discharge port of each expanded crystallizer 5 is connected to the feed port of the corresponding filtration component 1 through a vacuum pipeline; each component structure of the vacuum filtration system 6, as well as between the vacuum filtration system 6 and the two interconnected filtration components 1, is also connected by a vacuum pipeline, thereby better ensuring the sealing performance of the pipeline.

[0033] As can be seen from the above description, the beneficial effects of the present utility model are as follows: providing a recycling system for residual materials of expanded ammonium nitrate explosive, when cleaning the residual materials, the residual materials can be transported to the material collection tank 2 for preliminary recycling treatment; then the processed residual materials are transferred to the dynamic mixer 4 through the pumping device 3 to form a mixed solution that can be directly used by the expanded crystallizer 5, so as to form a closed loop for the entire set of equipment; compared with the existing residual material treatment methods, the recycling system of the present utility model can not only improve the utilization rate of unreacted materials, but also avoid directly discharging the cleaning liquid into the outside world, thereby playing a role in protecting the ecology; at the same time, each device is connected by pipelines, and driven by the pumping device 3, it can provide structural support for the full-automatic recycling of residual materials, and thus can replace the operation steps of manually transporting residual materials, achieving the purpose of saving labor costs.

[0034] Further, the filtration component 1 includes at least one bag filter 11;

[0035] The filter 11 is connected in series between the vacuum filtration system 6 and the material collection tank 2 through a pipeline.

[0036] Specifically, the filter 11 is any commercially available device that can filter substances (such as gases or liquids). The filter 11 of the present utility model is preferably a five-bag filter 11.

[0037] Further, the diameter of the pipeline connecting the filtration component 1 and the material collection tank 2 is 50 mm to 100 mm. Preferably, the diameter of the pipeline connecting the filtration component 1 and the material collection tank 2 is 60 mm to 90 mm.

[0038] Further, the discharge port of the filtration component 1 is higher than the feed port of the material collection tank 2;

[0039] The pipeline connecting the filtration component 1 and the material collection tank 2 is a straight pipe.

[0040] As can be seen from the above description, this design makes specific improvements to the composition structure of the filtration component 1, the corresponding pipe diameter size, and the layout relationship between the filtration component 1 and the material collection tank 2, so as to ensure that when cleaning the residual materials, the residual materials can be smoothly introduced into the material collection tank 2, avoiding the problem of reducing the principle utilization rate due to the residual materials remaining inside the filtration component 1, and further increasing the production cost.

[0041] Further, the above-mentioned circulating recovery system for the residual materials of expanded ammonium nitrate explosive further includes a flushing device;

[0042] The liquid outlet of the flushing device is connected to the liquid inlet of the filtration component 1.

[0043] Specifically, the flushing device of the present utility model includes a spray head and a booster pump. The spray head is connected to the liquid outlet of the booster pump; the liquid inlet of the booster pump is connected to any peripheral water storage device; the spray head is arranged inside the filter 11; the flushing device of the present utility model can also be directly connecting the liquid outlet of the booster pump to the inside of the filter 11, that is, the flushing device can be any commercially available device that can generate high-pressure water flow; when necessary, the peripheral water storage device can also be provided with a corresponding heating device, so that the flushing device can spray high-temperature and high-pressure water flow to enhance the flushing strength of the filter 11.

[0044] From the above description, it can be seen that the design provides a specific solution for automatically flushing the residual materials inside the filter component 1. When the preparation work is completed, the flushing device can be started to inject a steady stream of high-pressure water into the filter component 1, thereby ensuring that the residual materials remaining inside the filter component 1 can be completely cleaned up, avoiding the waste of raw materials due to residual materials. At the same time, it can also effectively replace the manual cleaning method, thereby saving labor costs.

[0045] Furthermore, the above-mentioned recycling system for the residual material of expanded ammonium nitrate explosive further includes a valve body 7;

[0046] The valve body 7 is arranged on the pipeline connecting the filter assembly 1 and the material collection tank 2 .

[0047] Specifically, the valve body 7 is any commercially available device that can cut off the flow of a pipeline. The valve body 7 of the present invention is preferably a ball valve.

[0048] As can be seen from the above description, by providing a valve body 7 on the pipeline connecting the filter assembly 1 and the material collection tank 2, the filter assembly 1 and the material collection tank 2 can be isolated during the normal puffing reaction process, thereby ensuring that the puffing crystallizer 5 can be continuously in a vacuum state.

[0049] Furthermore, the material collecting tank 2 includes a tank body 21 and a stirring device 22;

[0050] The stirring end of the stirring device 22 is arranged inside the tank body 21 .

[0051] As can be seen from the above description, since the residual material transported to the tank body 21 is still partially in agglomerate form, the residual material can be completely mixed with the corresponding solution through continuous stirring by the stirring device 22, so that when this part of the initially formed mixed liquid is transported to the subsequent dynamic mixer 4, the dynamic mixer can better prepare a mixture that can undergo an expansion reaction, thereby providing structural support for the recycling of the residual material.

[0052] The utility model discloses a recycling system for residual materials of expanded ammonium nitrate explosives, which can assist the production of expanded ammonium nitrate explosives.

[0053] Please refer to Figures 1 to 2 , the first embodiment of the present utility model is:

[0054] A recycling system for residual materials of expanded ammonium nitrate explosive, comprising a flushing device, and an expanded crystallization machine 5, a vacuum filtration system 6, a filtration component 1, a material collection tank 2, a pumping device 3 and a dynamic mixer 4 which are connected in sequence by pipelines to form a loop; the filtration component 1 comprises four bag filters 11; the filters 11 are connected in series by pipelines between the vacuum filtration system 6 and the material collection tank 2; the pipeline connecting the filtration component 1 and the material collection tank 2 has a diameter of 80 mm, and a ball valve is installed on this pipeline; the discharge port of the filtration component 1 is higher than the feed port of the material collection tank 2; the pipeline connecting the filtration component 1 and the material collection tank 2 is a straight pipeline; the liquid outlet of the flushing device is communicated with the liquid inlet of the filtration component 1; the material collection tank 2 comprises a tank body 21 and a stirring device 22; the stirring end of the stirring device 22 is arranged inside the tank body 21.

[0055] The working principle of the present utility model is as follows: when it is necessary to clean the residual materials, first open the valve body 7, and then start the flushing device to continuously inject high-temperature and high-pressure water flow into the filter 11; the washed residual materials flow into the material collection tank 2 along the pipeline, and the stirring device 22 performs preliminary stirring on the residual material mixture; then, the preliminarily mixed solution is pumped into the dynamic mixer 4 by the pumping device 3 for deep mixing to form a solution that can be directly used by the expanded crystallization machine 5; finally, this part of the solution is re-injected into the expanded crystallization machine 5 through the pipeline, and the cleaning and recycling of the residual materials can be completed.

[0056] In summary, the recycling system for residual materials of expanded ammonium nitrate explosive provided by the present utility model can transport the residual materials to the material collection tank for preliminary recycling treatment when cleaning the residual materials; then, the treated residual materials are transported to the dynamic mixer by the pumping device to form a mixed solution that can be directly used by the expanded crystallization machine, so that the whole set of equipment forms a closed loop; compared with the existing residual material treatment methods, the recycling system of the present utility model can not only improve the utilization rate of unreacted materials, but also avoid directly discharging the cleaning liquid into the outside world, thereby playing a role in protecting the ecology; at the same time, it also provides a specific scheme for automatically flushing the residual materials inside the filtration component. After the preparation work is completed, starting the flushing device can inject a continuous stream of high-pressure water flow into the filtration component, so as to ensure that all the residual materials remaining inside the filtration component can be completely cleaned, avoid waste of raw materials caused by residual materials, and can also effectively replace the manual residue cleaning method, thereby also achieving the effect of saving labor costs.

[0057] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A recycling system for the residual materials of expanded ammonium nitrate explosive, characterized in that, It includes an expansion crystallizer, a vacuum filtration system, a filtration component, a material collection tank, a pumping device and a dynamic mixer which are connected in sequence by pipelines to form a loop; The filtration component includes at least one bag filter; the filters are connected in series by pipelines between the vacuum filtration system and the material collection tank; The discharge port of the filtration component is higher than the feed port of the material collection tank; the pipeline connecting the filtration component and the material collection tank is a straight pipe.

2. The recycling system for residual materials of expanded ammonium nitrate explosive according to claim 1, characterized in that, The diameter of the pipeline connecting the filtration component and the material collection tank is 50 mm to 100 mm.

3. The recycling system for residual materials of expanded ammonium nitrate explosive according to claim 1, characterized in that, It also includes a flushing device; The liquid outlet of the flushing device is communicated with the liquid inlet of the filtration component.

4. The recycling system for residual materials of expanded ammonium nitrate explosive according to claim 1, wherein It also includes a valve body; The valve body is arranged on the pipeline connecting the filtration component and the material collection tank.

5. The recycling system for the residual materials of the expanded ammonium nitrate explosive according to claim 1, characterized in that, The material collection tank includes a tank body and a stirring device; The stirring end of the stirring device is arranged inside the tank body.

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