CN201644000U - Pumping device for ammonium nitrate solution jet mixing - Google Patents
Pumping device for ammonium nitrate solution jet mixing Download PDFInfo
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- CN201644000U CN201644000U CN2010201627648U CN201020162764U CN201644000U CN 201644000 U CN201644000 U CN 201644000U CN 2010201627648 U CN2010201627648 U CN 2010201627648U CN 201020162764 U CN201020162764 U CN 201020162764U CN 201644000 U CN201644000 U CN 201644000U
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- return tank
- return
- basin
- tank
- submerged pump
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Abstract
The utility model relates to a mixing and pumping technology of ammonium nitrate solution, in particular to a pumping device for ammonium nitrate solution jet mixing, which is characterized in that a return tank is arranged beside the storage tank, the tank top cover of the return tank is lower than a discharge opening of the storage tank, the top cover of the return tank is provided with a submerged pump, the pump body of the submerged pump extends into the return tank to be hung in the cavity of the tank, the discharge pipe of the storage tank is connected with a discharge electric ball valve in serials, the return tank is provided with a static-pressure liquid meter, and a PLC control system controls the solution in the storage tank to pass through the discharge pipe, the return tank, the submerged pump and a return pipe to be jetted and mixed by a jet nozzle. Since the PLC control system is adopted to delay to close the submerged pump after the electric ball valve is closed, the utility model has the advantages that by adopting the delay control, the discharge pipe and the return pipe are in an evacuation state when the jet mixing system stops working, no vestigital solution is left and pipeline crystallization is prevented.
Description
Technical field:
The utility model relates to the stirring and the pumping technology of chemical industry solutions stirring, pumping technology, particularly ammonium nitrate solution.
Background technology:
The common insulation of the raw material ammonium nitrate solution (more than 110 ℃) that present commercial explosive is used is stored in the big volume basin standby, according to storage safe and technological requirement, must carry out intermittence and stir.Consider ammonium nitrate solution high temperature, be easy to characteristics such as crystallization and basin tank body size are bigger, mechanical type agitating device commonly used is difficult to realize, can adopts the jet alr mode.
Traditional jet stirs the pipe-line system of partly being made of a sealing working barrel, return duct, drainage conduit, jet nozzle etc., liquid is by the drainage conduit working barrel of flowing through in the basin, be pumped into return duct by working barrel again, enter the jet nozzle that is immersed in the basin in the basin solution and spray at a high speed, make the interior solution of basin effectively mix stirring.Wherein working barrel, return duct, drainage conduit are the pumping installations of jet stirring system.
Because ammonium nitrate solution is easy to the characteristics of crystallization, if the simple working barrel that uses is extracted ammonium nitrate solution out, send back in the basin by pipeline then and stir, there is following problem: the one, be full of ammonium nitrate solution all the time in the work pump housing and in the turnover working barrel pipeline, after if working barrel quits work, particularly the off-time long after, these solution can be lowered the temperature, crystallization is in pump and pipeline.Even working barrel and pipeline are incubated processing, if after crystallization is stopped up, also be difficult to make it dissolving.The 2nd, even can be at the position of basin inlet and outlet piping mounted valve, after each working barrel stopped, timely valve-off be discharged the solution that reaches in the pump housing in the pipeline, solves the problem of residual solution cooling, crystallization, but the problem how solution of existence discharge is handled.Adopt manual type that the solution of discharging is turned back in basin or the production process and scalded easily, dangerous; The operation of employing equipment needs to increase in addition a cover pumping installations.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of ammonium nitrate solution jet to stir the pumping installations of usefulness.
Device scheme of the present utility model is: on the basin side return tank is set, the top ends of cans of this return tank is lower than the basin discharge gate; The submerged pump as working barrel of chemical anticorrosion is installed on the return tank top cover, and the motor transmission mechanism of submerged pump is fixed on the top cover, and the pump housing of submerged pump stretches into the return tank rear suspension in the jar inner chamber; Charging aperture pipeline connection on the discharge gate of basin drainage conduit and the return tank top cover, the charging aperture of the return duct of basin is communicated with the discharging opening of submerged pump; Be serially connected with the discharge electrical ball valve on the drainage conduit of basin, the electrical ball valve switching circuit is connected with the PLC control system respectively; Return tank is provided with pressure-type liquidometer, and described liquid level gauge output line road is connected with the PLC control system.
Advantage of the present utility model is: when the jet stirring system was shut down, drainage conduit and return duct were in emptying state, and noresidue solution prevents the pipeline crystallization; Return tank design has heater, and flowing to certainly after the residue ammonium nitrate solution crystallization of return tank can heating for dissolving; The steam access port of return duct and the design of submerged pump interface is even the solution crystallization phenomenon that occurs also can easily obtain mediation; The vacuum breaker device that the return line eminence is installed has been avoided the generation of siphonage, has eliminated potential safety hazard; The submerged pump that is installed on the return tank is easy to maintenance, does not exist the danger that pyrosol leaks scald may take place when tearing pump open; The return tank design of semi-open-type has made things convenient for reviewer's sampling, carries out the analysis of ammonium nitrate solution physical and chemical index.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is a submerged pump pump housing positional structure enlarged diagram.
Fig. 3 is return tank, submerged pump mounting structure enlarged diagram.
The specific embodiment:
Structure of the present utility model comprises return duct (3), drainage conduit (13), jet nozzle (4) and the working barrel of basin (5), basin (5), it is characterized in that; On basin (5) side a return tank (10) is set, the top ends of cans of this return tank (10) is lower than basin (5) drainage conduit (13); The submerged pump as working barrel (6) of chemical anticorrosion is installed on return tank (10) top cover, and the motor transmission mechanism of submerged pump (6) is fixed on the top cover, and the pump housing of submerged pump (6) stretches into return tank (10) rear suspension in the jar inner chamber; Charging aperture pipeline connection on the discharge gate of basin (5) drainage conduit (13) and return tank (10) top cover, the charging aperture of the return duct (3) of basin (5) is communicated with the discharging opening of submerged pump (6); Be serially connected with discharge electrical ball valve (14) on the drainage conduit (13) of basin (5), electrical ball valve (14) switching circuit is connected with the PLC control system respectively; Return tank (10) is provided with pressure-type liquidometer (12), and described liquid level gauge (12) output line road is connected with the PLC control system.
The pipeline eminence bypass of return duct (3) is communicated with magnetic valve (2), and the switching circuit of described magnetic valve (2) is connected with the PLC control system.
Return tank (10) inner chamber is provided with serpentine coil, and air inlet, the gas outlet of this serpentine coil on return tank (10) sidewall is communicated with steam pipe by valve respectively.
Be serially connected with upper ball valve (7), three-way pipe, following ball valve (9) on return duct (3) vertical direction successively, the shunt valve of described three-way pipe is communicated with the vapor interface of steam pipe (8).
Return tank (10) but be open type, its top cover is provided with hinge type and renovates, and can open to close.
Process is: when needing to stir, the PLC control system starts submerged pump (6), open electrical ball valve (14), ammonium nitrate solution flows automatically in the return tank (10) through drainage conduit (13), is transported to the interior jet nozzle of basin (5) (4) by submerged pump (6) by return duct (3) and stirs; When control system need be stopped to the stipulated time, close electrical ball valve (14) earlier, time-delay stops submerged pump (6) then.
Described time-delay stops submerged pump (6): the liquid level of return tank (10) when liquid level arrives setting height, sends a signal to control system by pressure-type liquidometer (12) by pressure-type liquidometer (12) control, closes electrical ball valve (14) by control system again; Equally, when the liquid level in the return tank (10) drops to the position of setting, send a signal to control system, close submerged pump (6) by control system again by pressure-type liquidometer (12).
Native system groundwork principle is: at the other design of basin (a 5) return tank (10), the jar mouthful position of this return tank (10) is lower than basin (5) drainage conduit (13), and the submerged pump (6) of a chemical anticorrosion is housed on the return tank (10).At first open electrical ball valve (14) when needing to stir, the solution in the basin (5) is entered return tank (10), start the submerged pump (6) on the return tank (10) then, solution is pumped to basin (5) bottom toward the tank deck eminence, stir the solution in the basin (5); When valve-off or after stopping submerged pump (6), residual solution can flow to return tank (10) certainly in the pipeline, prevents solution crystallization; Return tank (10) can heat, and guarantees the temperature of submerged pump (6) and jar interior solution, prevents crystallization; Inlet and outlet piping has not only designed the insulation interlayer, and has designed vapor interface (8), can directly feed steam in case of necessity and carry out the pipeline purging.
Concrete way is: when system's follow procedure setting needs work, start submerged pump (6) earlier by control system, open electrical ball valve (14), ammonium nitrate solution flows automatically in the return tank (10) through drainage conduit (13), is transported in the basin (5) by submerged pump (6) and stirs; When control system need be stopped to the stipulated time, close electrical ball valve (14) earlier, time-delay stops submerged pump (6) then.The liquid level of return tank (10) when liquid level arrives setting height, sends a signal to control system by pressure-type liquidometer (12) by pressure-type liquidometer (12) control, closes electrical ball valve (14) by control system again; Equally, when the liquid level in the return tank (10) drops to the position of setting, send a signal to control system, close submerged pump (6) by control system again by pressure-type liquidometer (12).For preventing the crystallization of residual ammonium nitrate solution in the pipeline, drainage conduit (13) and return duct (3) are designed to have constant slope, after finishing the jet stirring, residual solution on the pipeline will flow automatically in the return tank (10) of low level under the effect of deadweight, drainage conduit (13) and the return duct (3) of this moment are in emptying state, prevent residual solution crystallization in pipeline, blocking pipeline.
Because return tank (10) is in low level, behind system closing submerged pump (6), surplus solution in the return duct (3) flow back under the deadweight effect in the return tank (10), and may cause siphonage (solution in the basin (5) flows backward in the return tank (10)) this moment.Because the high temperature and the corrosivity of ammonium nitrate solution, in case siphonage takes place, may there be bigger safety problem in pyrosol after overflowing return tank (10).For siphonage is taken place, must carry out vacuum breaker to return duct (3) road and handle, destroy siphonage.For this reason,, after finishing the jet stirring that once circulates, open magnetic valve (2), emptying is carried out on return duct (3) road, make its vacuum breaker, reach the effect that prevents siphon by control system at the pipeline eminence dress magnetic valve (2) of return duct (3).
Consider that ammonium nitrate solution is easy to the characteristics of crystallization, in native system, also taked several the measures that prevent crystallization:
1, all valves in the system, magnetic valve (2) all need be selected the steam insulation type for use, select stainless steel for use.
2, in return tank (10), serpentine coil is housed, and (by intellectual integral temperature indicator (11) monitoring) can feed steam automatically when the temperature of the ammonium nitrate solution in the return tank (10) reduces, it is carried out heat treated, prevent the crystalline polamer that the reduction owing to temperature causes.
3, drainage conduit (13) and return duct (3) all adopt the pattern of chuck sleeve pipe, feed steam and be incubated processing in sleeve pipe.
4, in order to prevent that solution at return duct (3) and flow down in pump (6) pump housing and stop up, is equipped with vapor interface (8) and upper and lower two ball valves in the return duct (3) and the junction of submerged pump (6) discharging opening.When return duct (3) stops up, can close down ball valve (9), open upper ball valve (7), feed steam by vapor interface (8) and carry out the pipeline mediation; Equally, when submerged pump (6) is stopped up by the ammonium nitrate of crystallization, can close upper ball valve (7), open down ball valve (9), feed the steam mediation pump housing by vapor interface (8).
The pumping installations that this jet stirs satisfies salpeter solution preferably and carries out the needs that jet stirs, and has the following advantages: when the jet stirring system was shut down, drainage conduit (13) and return duct (3) were in emptying state, and noresidue solution prevents the pipeline crystallization; Return tank (10) design has heater, and flowing to certainly after the residue ammonium nitrate solution crystallization of return tank (10) can heating for dissolving; Return duct (3) is provided with the steam access port with the junction of submerged pump (6) discharging opening, even the solution crystallization phenomenon that occurs also can easily obtain mediation; The vacuum breaker device that return duct (3) road eminence is installed has been avoided the generation of siphonage, has eliminated potential safety hazard; The submerged pump (6) that is installed on the return tank (10) is easy to maintenance, does not exist the danger that pyrosol leaks scald may take place when tearing pump open; The return tank of semi-open-type (10) design has made things convenient for reviewer's sampling, carries out the analysis of ammonium nitrate solution physical and chemical index.
Claims (4)
1. an ammonium nitrate solution jet stirs the pumping installations of usefulness, comprises return duct (3), drainage conduit (13), jet nozzle (4) and the working barrel of basin (5), basin (5), it is characterized in that; On basin (5) side a return tank (10) is set, the top ends of cans of this return tank (10) is lower than basin (5) drainage conduit (13); The submerged pump as working barrel (6) of chemical anticorrosion is installed on return tank (10) top cover, and the motor transmission mechanism of submerged pump (6) is fixed on the top cover, and the pump housing of submerged pump (6) stretches into return tank (10) rear suspension in the jar inner chamber; Charging aperture pipeline connection on the discharge gate of basin (5) drainage conduit (13) and return tank (10) top cover, the charging aperture of the return duct (3) of basin (5) is communicated with the discharging opening of submerged pump (6); Be serially connected with discharge electrical ball valve (14) on the drainage conduit (13) of basin (5), electrical ball valve (14) switching circuit is connected with the PLC control system respectively; Return tank (10) is provided with pressure-type liquidometer (12), and described liquid level gauge (12) output line road is connected with the PLC control system.
2. a kind of ammonium nitrate solution jet according to claim 1 stirs the pumping installations of usefulness, and it is characterized in that: the pipeline eminence bypass of return duct (3) is communicated with magnetic valve (2), and the switching circuit of described magnetic valve (2) is connected with the PLC control system.
3. a kind of ammonium nitrate solution jet according to claim 1 stirs the pumping installations of usefulness, it is characterized in that: return tank (10) inner chamber is provided with serpentine coil, and air inlet, the gas outlet of this serpentine coil on return tank (10) sidewall is communicated with steam pipe by valve respectively.
4. a kind of ammonium nitrate solution jet according to claim 1 stirs the pumping installations of usefulness, it is characterized in that: be serially connected with upper ball valve (7), three-way pipe, following ball valve (9) on return duct (3) vertical direction successively, the shunt valve of described three-way pipe is communicated with the vapor interface of steam pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201627648U CN201644000U (en) | 2010-04-19 | 2010-04-19 | Pumping device for ammonium nitrate solution jet mixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201627648U CN201644000U (en) | 2010-04-19 | 2010-04-19 | Pumping device for ammonium nitrate solution jet mixing |
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| CN201644000U true CN201644000U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201627648U Expired - Fee Related CN201644000U (en) | 2010-04-19 | 2010-04-19 | Pumping device for ammonium nitrate solution jet mixing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829513A (en) * | 2010-04-19 | 2010-09-15 | 福建海峡科化股份有限公司 | Pumping device and system for jet stirring of ammonium nitrate solution |
| CN102701891A (en) * | 2012-06-07 | 2012-10-03 | 广东振声科技股份有限公司 | Automatic cycle supercritical flow stirring system of ammonium nitrate aqueous solution storage and insulation feed tank |
| CN114197119A (en) * | 2021-12-20 | 2022-03-18 | 徐州力达缝纫设备制造有限公司 | Thread take-up mechanism for sewing machine |
-
2010
- 2010-04-19 CN CN2010201627648U patent/CN201644000U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829513A (en) * | 2010-04-19 | 2010-09-15 | 福建海峡科化股份有限公司 | Pumping device and system for jet stirring of ammonium nitrate solution |
| CN102701891A (en) * | 2012-06-07 | 2012-10-03 | 广东振声科技股份有限公司 | Automatic cycle supercritical flow stirring system of ammonium nitrate aqueous solution storage and insulation feed tank |
| CN114197119A (en) * | 2021-12-20 | 2022-03-18 | 徐州力达缝纫设备制造有限公司 | Thread take-up mechanism for sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120419 |