CN201735345U - Ammonium nitrate solution charging and jetting combined device - Google Patents
Ammonium nitrate solution charging and jetting combined device Download PDFInfo
- Publication number
- CN201735345U CN201735345U CN2010202974087U CN201020297408U CN201735345U CN 201735345 U CN201735345 U CN 201735345U CN 2010202974087 U CN2010202974087 U CN 2010202974087U CN 201020297408 U CN201020297408 U CN 201020297408U CN 201735345 U CN201735345 U CN 201735345U
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- control valve
- basin
- electric control
- submerged pump
- return duct
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Abstract
An ammonium nitrate solution charging and jetting combined device relates to the chemical engineering solution stirring and pumping technology, and is characterized in that a three-way pipe connecting part is serially connected to the feeding tube mounted between a submerged pump and a reaction pot in an upward vertical manner, the by-pass port of the three-way pipe connecting part is communicated with a return conduit through a backflow electric control valve, and the return conduit is also communicated with the jet nozzle implementation pipeline extending into a storage tank; a feeding electric control valve is serially connected to the feeding tube above the three-way pipe connecting part open onto the reaction pot; and a temperature sensor is fixedly mounted on the storage tank, the signal output circuit of the temperature sensor on the storage tank, a backflow electric control valve switching circuit, a feeding electric control valve switching circuit and a submerged pump switching circuit are respectively connected with a PLC (Programmable logic Controller) control system circuit. The utility model has the advantages that the submerged pump conveying the solution to production process serves as a working pump for jet stirring, and can pump material and perform jet stirring; and after the submerged pump stops, the ammonium nitrate solution returns automatically.
Description
Technical field:
The utility model relates to chemical industry solutions stirring, pumping technology, the particularly stirring of high temperature ammonium nitrate solution and pumping technology.
Background technology:
The raw material ammonium nitrate solution (more than 110 ℃) that present commercial explosive is used insulation usually is stored in the big volume basin standby, do not stir if pyrosol is long-time in basin, its concentration and temperature will produce layering and change, or possibility hot-spot, the security incident that sets off an explosion stirs so must carry out intermittence.Consider ammonium nitrate solution high temperature, be easy to characteristics such as crystallization and basin tank body size be bigger, can adopt the jet alr mode.The jet stirring technique is to utilize fluid itself to obtain mechanical energy from working barrel to form high-speed jet, and the meeting of high-speed jet simultaneously other fluid of carrying under one's arms is sheared circulation to the fluid that need stir, and reaches to mix and stirs purpose.The pipe-line system of generally partly forming a sealing by working barrel, return duct, drainage conduit, jet nozzle etc.
Existing production line is installed an ammonium nitrate solution basin, this basin height dimension little (≤3.8m), so its delivery pump that is dosed to production line is selected director's axle (axial length 3.4m) submerged pump for use, the motor and the mechanical transmission mechanism of submerged pump are installed in tank top, pump housing suspention is to a jar end, the discharging opening of the pump housing is communicated with feed pipe, and feed pipe stretches out behind the basin top cover and retort charging aperture pipeline connection.
Usually to design one and overlap independently pumping, jet stirring system, a working barrel such as chemical centrifugal pump at first is installed outside basin, working barrel is extracted liquid in the basin out, be pumped into return duct by working barrel again, spray at a high speed by the jet nozzle in the basin, make the interior solution of basin effectively mix stirring.This enclosed jet stirring system because ammonium nitrate solution is easy to crystallization, is full of ammonium nitrate solution in the work pump housing and in the turnover working barrel pipeline all the time, and solution is lowered the temperature easily, crystallization is in pump and pipeline.In addition, newly-increased pumping, jet stirring system also need certain investment, and the workload of installation is also bigger.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, provides that a kind of ammonium nitrate solution feeds intake, the device of jet hybrid parallel.
The device of scheme of the present utility model is: be connected in series a three-way pipe connector at submerged pump to the feed pipe of installing straight up between the retort, the by-pass port of three-way pipe connector is communicated with return duct by a backflow electric control valve, return duct again with stretch into basin in jet nozzle enforcement pipeline be communicated with; The caliber of return duct is littler than the caliber of feed pipe, and the return duct transverse pipe design of being drawn by backflow electric control valve port has 3%～5% the downward-sloping gradient; Three-way pipe connector top leads to feeding electric control valve of serial connection on the feed pipe of retort; Be installed with temperature sensor on the basin; The switching circuit of the temperature sensor signal outlet line on the basin, backflow electric control valve switching circuit, feeding electric control valve switching circuit, submerged pump is connected with PLC control system circuit respectively.
Advantage of the present utility model is: utilize the working barrel send solution to the submerged pump of production process to stir as jet, both pumpable material can carry out the jet stirring again, reached a pump double-purpose purpose; After submerged pump was shut down and finished feeding or jet work, the ammonium nitrate solution in feed pipe, return duct and the valve can flow in the basin under the gravity effect certainly, had stopped to be trapped in the possibility of pipe intercrystalline, obstruction; Owing to do not need to design separately the jet agitating device, reduced the floor space of equipment, save the investment of equipment such as low level basin, submerged pump, valve, control system, also saved the expense of service equipment in the future, avoided the equipment running process fault to leak the unsafe factor that brings.
Description of drawings:
Accompanying drawing is the utility model structural representation.
The specific embodiment:
Structure of the present utility model comprises basin 6, submerged pump 5, return duct 4, jet nozzle, the motor of submerged pump 5 and mechanical transmission mechanism are installed in basin 6 tops, pump housing suspention is to a jar end, the discharging opening of the pump housing is communicated with feed pipe 3, feed pipe 3 stretches out behind basin 6 top covers and retort charging aperture pipeline connection, it is characterized in that: to the feed pipe of installing straight up between the retort 3 that stretches out basin 6 top covers, be connected in series a three-way pipe connector at submerged pump 5, the by-pass port of three-way pipe connector is communicated with return duct 4 by a backflow electric control valve 2, and interior with the stretching into basin 6 again jet nozzle enforcement pipeline of return duct 4 is communicated with; The caliber of return duct 4 is littler than the caliber of feed pipe 3, and the return duct 4 transverse pipe design of being drawn by backflow electric control valve 1 port has 3%～5% the downward-sloping gradient; Three-way pipe connector top leads to feeding electric control valve 1 of serial connection on the feed pipe 3 of retort, and 6 are installed with temperature sensor 7 on the basin; The switching circuit of the temperature sensor 7 output line roads on the basin 6, backflow electric control valve 2 switching circuits, feeding electric control valve 1 switching circuit, submerged pump 5 is connected with PLC control system circuit respectively.
Method of the present utility model is: the motor of submerged pump 5 and mechanical transmission mechanism are installed in basin 6 tops; pump housing suspention is to a jar end; the discharging opening of the pump housing is communicated with feed pipe 3; feed pipe 3 stretches out behind basin 6 top covers and retort charging aperture pipeline connection; it is characterized in that: the submerged pump 5 of ammonium nitrate solution basin is exported to the feed pipe 3 of retort for installing straight up; backflow electric control valve 2 of feed pipe 3 bypass and return duct 4 outside 6 jars of basins; when making submerged pump 5 give the retort feeding; the control section material diversion return duct 4 of flowing through; by the jet nozzle ejection solution in the basin 6 being carried out jet stirs; or close 1 of feeding electric control valve and do pure fluidics stirring work; by adjusting the aperture of motor regulated valve on feed pipe 3 and the return duct 4; can control the feed flow of feed pipe and return duct ammonium nitrate solution; satisfy the needs that production and jet stir simultaneously; after submerged pump 5 is shut down; make feed pipe 3; 4 motor regulated valve is in open mode on the return duct, allows ammonium nitrate solution flow in the basin 6 certainly under the gravity effect.
Concrete workflow is: submerged pump 5 is installed in basin 6 tops, when retort need be fed in raw material, the PLC control system starts submerged pump 5, open feeding electric control valve 1, this moment, material was reinforced to retort through feed pipe 3 and feeding electric control valve 1 under pumping action, and feeding electric control valve 1 is controlled by the PLC control system.By three-way pipe connector bypass return line 4, the caliber of return duct 4 is less than the caliber of feed pipe 3 on feed pipe 3, and design has 3%～5% downtilt angles, and solution can be got back in the basin 6 through pipeline thus and carry out jet and stir.Return duct 4 is serially connected with backflow electric control valve 2, and backflow electric control valve 2 is in normally open under the normal condition, when submerged pump 5 to retort reinforced the time, also stir carrying out jet.Closing submerged pump 5 by the PLC control system behind reinforced the end finishes reinforced.After submerged pump 5 was shut down, owing to the motor regulated valve on feed pipe 3, the return duct 4 is in open mode, ammonium nitrate solution from flowing in the basin, had stopped to be trapped in the possibility of pipe intercrystalline, obstruction under the gravity effect;
Because each reinforced time is shorter, and reinforced blanking time is long, and basin 6 volumes are bigger, therefore are difficult to stir.Thereby the non-reinforced period, when temperature transmitter detects solution the temperature difference is arranged, or when finding in producing that solution concentration changes, the PLC control system will be closed feeding electric control valve 1, open backflow electric control valve 2, start submerged pump 5, this moment, solution was under the effect of submerged pump 5, directly be back in the basin 6 through return duct 4, carry out jet separately and stir, till the solution temperature difference is eliminated.
Material satisfies not needs stirring condition in basin 6, and when giving the retort feed again, and the PLC control system can closing volume electric control valve 2, opens feeding electric control valve 1, only does feeding work.
The flow design of submerged pump 5 has taken into full account the needs of feed pipe 3 and return duct 4, and the caliber size of return duct is about 1/5 of feed pipe 4.In addition, the motor regulated valve of installing in the outlet of feed pipe 3 and return duct 4 can carry out the adjusting of flow respectively, guarantees to produce simultaneously and requirement that jet stirs.If the temperature difference of solution can't be eliminated after stirring for a long time, show that the flow of jet stirring is less than normal, can reduce the aperture of feeding motor regulated valve 1 this moment, increases the liquid inventory that branches to return duct 4, the raising mixing effect.
Consider that ammonium nitrate solution is easy to crystallization and has corrosivity, electric control valve all need be selected the steam insulation type for use in present technique, and material is a stainless steel.Feed pipe 3 and return duct 4 all adopt the pattern of chuck sleeve pipe when design, feed steam and be incubated processing in sleeve pipe, and pipe material is a stainless steel.
Claims (1)
1. ammonium nitrate solution feeds intake, the device of jet hybrid parallel, comprise basin (6), submerged pump (5), return duct (4), jet nozzle, the motor of submerged pump (5) and mechanical transmission mechanism are installed in basin (6) top, pump housing suspention is to a jar end, the discharging opening of the pump housing is communicated with feed pipe (3), feed pipe (3) stretches out behind basin (6) top cover and retort charging aperture pipeline connection, it is characterized in that: go up three-way pipe connector of serial connection at submerged pump (5) to the feed pipe of installing straight up between the retort (3) that stretches out basin (6) top cover, the by-pass port of three-way pipe connector is communicated with return duct (4) by a backflow electric control valve (2), and interior with stretching into basin (6) the again jet nozzle of return duct (4) is implemented pipeline and is communicated with; The caliber of return duct (4) is littler than the caliber of feed pipe (3), and return duct (4) the transverse pipe design of being drawn by backflow electric control valve (1) port has 3%～5% the downward-sloping gradient; The feed pipe (3) that three-way pipe connector top leads to retort upward is connected in series a feeding electric control valve (1), and (6) are installed with temperature sensor (7) on the basin; The switching circuit of temperature sensor (7) the output line road on the basin (6), backflow electric control valve (2) switching circuit, feeding electric control valve (1) switching circuit, submerged pump (5) is connected with PLC control system circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202974087U CN201735345U (en) | 2010-08-19 | 2010-08-19 | Ammonium nitrate solution charging and jetting combined device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202974087U CN201735345U (en) | 2010-08-19 | 2010-08-19 | Ammonium nitrate solution charging and jetting combined device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735345U true CN201735345U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202974087U Expired - Lifetime CN201735345U (en) | 2010-08-19 | 2010-08-19 | Ammonium nitrate solution charging and jetting combined device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201735345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940885A (en) * | 2010-08-19 | 2011-01-12 | 福建海峡科化股份有限公司 | Device and method for carrying out mixed parallel of charging and jetting of ammonium nitrate solution |
-
2010
- 2010-08-19 CN CN2010202974087U patent/CN201735345U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940885A (en) * | 2010-08-19 | 2011-01-12 | 福建海峡科化股份有限公司 | Device and method for carrying out mixed parallel of charging and jetting of ammonium nitrate solution |
| CN101940885B (en) * | 2010-08-19 | 2012-08-01 | 福建海峡科化股份有限公司 | Device and method for carrying out mixed parallel of charging and jetting of ammonium nitrate solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110209 Effective date of abandoning: 20120801 |