CN103480295A - Device for quickly mixing ammonium nitrate water solution - Google Patents
Device for quickly mixing ammonium nitrate water solution Download PDFInfo
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- CN103480295A CN103480295A CN201310394257.5A CN201310394257A CN103480295A CN 103480295 A CN103480295 A CN 103480295A CN 201310394257 A CN201310394257 A CN 201310394257A CN 103480295 A CN103480295 A CN 103480295A
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Abstract
The invention provides a device for quickly mixing an ammonium nitrate water solution, which comprises a storage tank, wherein the upper part of the storage tank is provided with a buffer tank; the ammonium nitrate water solution enters the storage tank through the buffer tank; the inside of the storage tank is horizontally provided with an air distributor; the air distributor is connected with an air compressor arranged outside the storage tank through a first pipeline; an outlet end at the bottom end of the storage tank is connected with a circulating delivery pump; an outlet end of the circulating delivery pump is communicated with the upper end of the storage tank through a second pipeline; and an outlet end of the second pipeline is positioned on the middle upper part of the storage tank. The device can be used for sufficiently and quickly mixing the ammonium nitrate water solution, and greatly enhances the work efficiency.
Description
Technical field
The present invention relates to the aqueous ammonium nitrate solution technical field, be specifically related to a kind of device of rapid mixing aqueous ammonium nitrate solution.
Background technology
Ammonium nitrate is the salt generated by nitric acid and ammonia react, be a kind of important nitrogenous fertilizer, the nitrogenous fertilizer sterling is white crystals, containing ammonium nitrogen and nitrate nitrogen half and half, be applied to temperature than on the dry crop of low country, it is faster, effective than the fertilizer efficiency of the ammonium fertilizers such as ammonium sulfate and urea.Ammonium nitrate and fuel oil combine, and can be made into explosive, are applied to the aspects such as military and mining.Pure ammonium nitrate (NH
4nO
3) be stable at normal temperatures, to hitting, collide or rubbing all insensitive.But high temperature, high pressure and have can be oxidized material can blast under existing.Therefore must strictly observe security regulations in producing, store and transport and using.
Liquid ammonium nitrate can significantly reduce steam consumption in process of production, guarantees the safety of Product transport process, makes explosive production enterprise reduce cost of labor simultaneously, realizes the essential safety of Chemical Manufacture.As environmentally friendly machine, this product has also obtained the height approval of national relevant ministries and commissions.Industry and letterization section formally list the liquid ammonium nitrate product in " Chinese civil explosive material industry " 12 " development planning outline ", and widely popularize in the civil explosive material industry as new product.Along with technological progress, the technique that liquid ammonium nitrate replaces the solid ammonium nitrate to directly apply to commercial explosive production is technical development main flow from now on.Domestic production at present and use aqueous ammonium nitrate solution be a few years, and the research of the aspects such as the technique of its production and use, equipment and application security is carried out.
In aqueous ammonium nitrate solution production, storage, entrucking process, because raw material acid concentration, ammonia are pressed the factors such as fluctuation or load adjustment, the concentration of ammonium nitrate water solution of producing changes frequent, conventional solution stirs with the agitating device that is arranged on tank deck, often waiting stirs approximately needs 2-4 hour, time is long and the agitating device maintenance is inconvenient, simultaneously likely because the mechanical seal leakage of oil affects safety.For guaranteeing product quality and accelerating operating efficiency, must under the prerequisite of safety, aqueous ammonium nitrate solution be mixed in a short period of time, be beneficial to be analyzed, the later process such as entrucking.
Summary of the invention
For addressing the above problem, the invention provides a kind of device that can the rapid mixing liquid ammonium nitrate aqueous solution, under the premise that security is guaranteed, aqueous ammonium nitrate solution is mixed in a short period of time, be beneficial to analyze and entrucking.
A kind of device of rapid mixing aqueous ammonium nitrate solution, comprise storage tank, and described storage tank top is provided with surge tank, and described aqueous ammonium nitrate solution enters in storage tank from surge tank; The inner horizontal of described storage tank is provided with air sparger, and described air sparger is connected with the air compressor machine of being located at the storage tank outside by the first pipeline; The port of export that is positioned at the storage tank bottom is connected with the circulation delivery pump, and the port of export of described circulation delivery pump is communicated with the upper end of storage tank by second pipe, and the port of export of described second pipe is positioned at the middle and upper part of storage tank.
Further, the port of export of described air compressor machine is connected with dry oil removing pot.
Further, the top of described storage tank is provided with the atmospheric valve with air communication; Be provided with liquid valve between storage tank and circulation delivery pump; Described second pipe middle part is connected with discharge nozzle, and described discharge nozzle is provided with transfer valve and flowmeter; Be provided with return valve between described discharge nozzle and storage tank.
Further, described circulation carries delivery side of pump to be provided with sample valve.
Further, described tank inside is provided with steam-heating pipe, is provided with a plurality of thermometers for detection of the aqueous ammonium nitrate solution temperature in storage tank.
In order to guarantee the safety of aqueous ammonium nitrate solution, need to guarantee that the temperature of aqueous ammonium nitrate solution in storage tank is 130-140, if thermometer detects the aqueous ammonium nitrate solution temperature while spending lower than 130-140, the steam of steam regulation heating tube, its steam pressure 0.8-1.1Mpa, heated aqueous ammonium nitrate solution by heating tube.
In this device, heating tube is coil pipe, is positioned at tank bottom 30-50cm place; The air sparger level is positioned at tank bottom 70-100cm place, is densely covered with the boring that diameter is about 1 millimeter on it.In order to guarantee the security of aqueous ammonium nitrate solution, the connecting pipe between storage tank, surge tank and storage tank and second pipe and discharge nozzle all adopt the insulation of steam adjoining pipe.
This device has realized aqueous ammonium nitrate solution is carried out the purpose of rapid mixing, and it mainly reaches the purpose of rapid mixing by three approach:
1, potential energy utilization: aqueous ammonium nitrate solution enters storage tank from surge tank, because dashpot is positioned at the top of storage tank, generally exceeds 30-40 rice, so the higher potential energy of aqueous ammonium nitrate solution utilization enters the middle and upper part of storage tank from surge tank, reaches the purpose of rapid mixing;
2, compressed air stirs: after the aqueous ammonium nitrate solution of the scheduled volume of packing in storage tank, open air compressor machine and drive air, outlet pressure is controlled at 0.1-0.3Mpa, after the super-dry oil removing pot is processed, clean compressed air enters in aqueous ammonium nitrate solution by air sparger, fast and fully agitating solution;
3, the self-loopa of circulation delivery pump mixes: the self-loopa of ON cycle delivery pump, and make the aqueous ammonium nitrate solution of tank bottom get back to the middle and upper part of storage tank by second pipe, in so abundant assurance storage tank, aqueous ammonium nitrate solution mixes.
So the present invention is mixed aqueous ammonium nitrate solution by above-mentioned three approach, reach the purpose mixed.Whole mixed process is short simultaneously, only needs just can make in 10-15 minute aqueous ammonium nitrate solution to mix, and mixes 2-4 consuming time hour with conventional mechanical agitation and compares, and has greatly improved operating efficiency.In addition, apparatus structure of the present invention is simple, load adjustment is convenient, fully meeting the market requirement; And, under the prerequisite that guarantees aqueous ammonium nitrate solution safety, reach time saving and energy saving purpose.
The accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present invention.
In figure: 1-1 atmospheric valve, 1-2 return valve, 1-3 transfer valve, 1-4 sample valve, 1-5 liquid valve, 2-air compressor machine, the dry oil removing pot of 3-, 4-surge tank, 5-1 the first pipeline, 5-2 second pipe, 6-storage tank, the 7-steam-heating pipe, 8-air sparger, 9-thermometer, 10-circulation delivery pump, 11-flowmeter.
The specific embodiment
As shown in Figure 1, a kind of device of rapid mixing aqueous ammonium nitrate solution, comprise storage tank 6, and storage tank 6 tops are provided with surge tank 4, and aqueous ammonium nitrate solution enters in storage tank 6 from surge tank 4; The inner horizontal of described storage tank 6 is provided with air sparger 8, and air sparger 8 is connected with the air compressor machine 2 of being located at the storage tank outside by the first pipeline 5-1; The port of export that is positioned at storage tank 6 bottoms is connected with circulation delivery pump 10, and the port of export of circulation delivery pump 10 is communicated with the upper end of storage tank 6 by second pipe 5-2, and the port of export of second pipe 5-2 is positioned at the middle and upper part of storage tank 6.
Further, for the cleanliness factor that improved compressed air, avoid the impact on aqueous ammonium nitrate solution, the port of export of described air compressor machine 2 is connected with dry oil removing pot 3.Compressed air is after super-dry oil removing pot 3 is processed, and clean compressed air enters in storage tank 6 by air sparger 8, and aqueous ammonium nitrate solution is uniformly mixed.
The top of storage tank 6 is provided with the atmospheric valve 1-1 with air communication; Be provided with liquid valve 1-5 between storage tank 6 and circulation delivery pump 10; The outlet of circulation delivery pump 10 is provided with sample valve 1-4 for sample analysis.Second pipe 5-2 middle part is connected with discharge nozzle, and described discharge nozzle is provided with transfer valve 1-3 and flowmeter 11; Be provided with return valve 1-2 between described discharge nozzle and storage tank 6.
Further, described storage tank 6 inside are positioned at air sparger 8 belows and are provided with steam-heating pipe 7, are provided with a plurality of thermometers for detection of the aqueous ammonium nitrate solution temperature 9 in storage tank 6, for guaranteeing the temperature of aqueous ammonium nitrate solution in storage tank.
The operating process of this device is as follows:
1, first open the atmospheric valve 1-1 on storage tank 6 tops, guarantee that storage tank 6 and atmosphere are connected to normal pressure.Open again surge tank, make aqueous ammonium nitrate solution enter the middle and upper part of storage tank 6 from dashpot 4 undershoots, utilize its difference in height and the potential energy that produces makes to enter that aqueous ammonium nitrate solutions in storage tank 6 carry out fast, preliminary mixing.Treat that the aqueous ammonium nitrate solution in storage tank 6 reaches 80% place of normal liquid level, stops charging.The quantity of steam that adjusting enters in steam-heating pipe is regulated the temperature of aqueous ammonium nitrate solution within the reasonable temperature scope of 130-140 degree.
2, open air compressor machine 2 and drive air, outlet pressure is controlled at 0.1-0.3Mpa, and compressed air is after super-dry oil removing pot 3 is processed, and clean compressed air enters in aqueous ammonium nitrate solution by air sparger 8, and it is carried out stirring fast and fully.
3, open return valve 1-2 and liquid valve 1-5, start circulation delivery pump 10 and carry out self-loopa, make the aqueous ammonium nitrate solution of storage tank 6 bottoms get back to the middle and upper part of storage tank 6 by second pipe 5-2, make aqueous ammonium nitrate solution again reach fully, mix uniformly.
4, mix after 10-15 minute, open sample valve 1-4, the sampling aqueous ammonium nitrate solution is analyzed its concentration, wait qualified after, open transfer valve 1-3, closing volume valve 1-2, carry out discharging by aqueous ammonium nitrate solution by flowmeter 11.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (5)
1. the device of a rapid mixing aqueous ammonium nitrate solution, comprise storage tank, it is characterized in that: described storage tank top is provided with surge tank, and described aqueous ammonium nitrate solution enters in storage tank from surge tank; The inner horizontal of described storage tank is provided with air sparger, and described air sparger is connected with the air compressor machine of being located at the storage tank outside by the first pipeline; The port of export that is positioned at the storage tank bottom is connected with the circulation delivery pump, and the port of export of described circulation delivery pump is communicated with the upper end of storage tank by second pipe, and the port of export of described second pipe is positioned at the middle and upper part of storage tank.
2. control device according to claim 1, it is characterized in that: the port of export of described air compressor machine is connected with dry oil removing pot.
3. control device according to claim 1, it is characterized in that: the top of described storage tank is provided with the atmospheric valve with air communication; Be provided with liquid valve between storage tank and circulation delivery pump; Described second pipe middle part is connected with discharge nozzle, and described discharge nozzle is provided with transfer valve and flowmeter; Be provided with return valve between described discharge nozzle and storage tank.
4. control device according to claim 1 is characterized in that: described circulation carries delivery side of pump to be provided with sample valve.
5. control device according to claim 1, it is characterized in that: described tank inside is provided with steam-heating pipe, is provided with a plurality of thermometers for detection of the aqueous ammonium nitrate solution temperature in storage tank.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103894095A (en) * | 2014-03-21 | 2014-07-02 | 湖北柳树沟化工科技有限公司 | Method for blending concentration of phosphoric acid and aeration storage tank thereof |
CN107200671A (en) * | 2017-07-13 | 2017-09-26 | 安徽雷鸣科化股份有限公司 | A kind of equipment and its method of work that aqueous gels are prepared without solid-state ammonium nitrate |
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CN1388097A (en) * | 2001-05-28 | 2003-01-01 | 泸天化(集团)有限责任公司 | Melt process of pelletizing nitramino zinc |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN103894095A (en) * | 2014-03-21 | 2014-07-02 | 湖北柳树沟化工科技有限公司 | Method for blending concentration of phosphoric acid and aeration storage tank thereof |
CN107200671A (en) * | 2017-07-13 | 2017-09-26 | 安徽雷鸣科化股份有限公司 | A kind of equipment and its method of work that aqueous gels are prepared without solid-state ammonium nitrate |
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