Concentrated salt liquid centrifugal device for ammonium sulfate production

Abstract

The utility model discloses a concentrated salt liquid centrifugal device for ammonium sulfate salt production. The concentrated salt liquid centrifugal device comprises a centrifugal machine, a vibration detector, a flushing water pipeline assembly, an incoming flow adjusting valve and a thickener. The feeding end of the centrifugal machine is communicated with the thickener through a pipeline, and an incoming flow regulating valve is arranged on the communicated pipeline; the vibration detectors are symmetrically arranged on the opposite sides of the centrifugal machine shell in pairs and electrically connected with the alarm. One end of the flushing water pipeline assembly is communicated with the condensate water storage tank, and the other end is communicated with a centrifugal machine pipeline. Flushing water pipes are connected to a feeding main pipe and a discharging main pipe of the centrifugal machine respectively, the centrifugal machine is comprehensively flushed by means of the time of large cutoff of incoming flow, the centrifugal machine does not need to be flushed independently, the handling capacity and the yield are improved, the production efficiency is improved, an air cylinder is matched to drive a material receiving disc arranged below a solid discharging pipe of the centrifugal machine to move, and the working efficiency is improved. The air cylinder drives the material receiving disc to move according to flushing requirements, and normal outflow of flushing water is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to a concentrated brine centrifuge device for ammonium sulfate production. Background Art

[0002] During the production of ferric phosphate, the wastewater generated contains various salts. After the wastewater undergoes heat exchange, multi-stage precipitation, plate and frame filtration, and ultrafiltration to obtain concentrated brine, due to the high content of ammonium sulfate salt, it is centrifuged and dehydrated to obtain ammonium sulfate solid.

[0003] During centrifugal dehydration and processing of concentrated brine, the flow rate and concentration of the concentrated brine entering the centrifuge will fluctuate according to the production process. In order to ensure the quality of the centrifuged product and avoid problems such as too low concentration of the product after centrifugation and too high liquid content, manual control is now used to control the flow opening, thereby ensuring smooth processing of centrifugal concentrated brine.

[0004] However, this method is time-consuming and labor-intensive, increasing labor costs. The centrifugal results are significantly affected by the worker's lack of responsibility, making it difficult to ensure smooth centrifugal operation. Furthermore, when the incoming flow is too high and needs to be reduced, production is interrupted and output is reduced due to the waiting period. Furthermore, the time-consuming regular cleaning of the centrifuge significantly impacts production.

[0005] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0006] In response to the above technical problems, the present application provides a concentrated brine centrifuge device for ammonium sulfate salt production, which can control the incoming flow rate according to the processing conditions of the centrifuge to avoid the problem of excessive water content in the material after centrifugation when the incoming flow is too large.

[0007] The present application provides a concentrated brine centrifuge device for ammonium sulfate production, comprising: a centrifuge, a vibration detector, a flushing water pipeline assembly, an inflow regulating valve, and a thickener; the feed end of the centrifuge is connected to the thickener pipeline, and the inflow regulating valve is provided on the connected pipeline;

[0008] The vibration detectors are symmetrically arranged in pairs on opposite sides of the centrifuge housing and are electrically connected to the alarm;

[0009] One end of the flushing water pipeline assembly is connected to the condensed water storage tank, and the other end is connected to the centrifuge pipeline.

[0010] Preferably, the centrifuge comprises: a centrifugal cavity, a discharge cylinder, a solid centrifugal discharge pipe, and a feed pipe; the liquid outlet of the flushing water pipeline assembly is respectively connected to the centrifugal cavity, the discharge cylinder, the solid centrifugal discharge pipe, and the feed pipe.

[0011] Preferably, it comprises: air hammers arranged in pairs; the air hammers are arranged on opposite side walls of the feed pipe.

[0012] Preferably, the discharge cylinder is connected to the liquid discharge pipe and the solid centrifugal discharge pipe respectively; the liquid discharge pipe is connected to the centrifugal mother liquid tank pipeline; the solid centrifugal discharge pipe is connected to the screw feeder through the connecting pipe.

[0013] Preferably, it includes: a guide tray; a solid centrifuge discharge pipe and a receiving pipe are arranged at intervals; the guide tray is movably arranged between the solid centrifuge discharge pipe and the receiving pipe; the liquid inlet of the guide tray is connected to the flushing water pipeline assembly pipeline; the liquid outlet of the guide tray is connected to the centrifuge mother liquor tank pipeline.

[0014] Preferably, it comprises: a frame, a cylinder; the cylinders are arranged in pairs on the frame and are drivingly connected to the guide tray; slide rails are symmetrically arranged in pairs on the top surface of the material receiving pipe; the guide tray is slidably arranged on the slide rails.

[0015] Preferably, the flushing water pipeline assembly includes: a plurality of flushing water pipes, a plurality of flushing water valves;

[0016] One end of the flushing water pipe is connected to the condensed water storage tank, and the other end is connected to the top of the discharge barrel, the side wall of the solid centrifugal discharge pipe, the centrifugal cavity, and the like through a hose;

[0017] The flushing water valves are respectively arranged on each flushing water pipe.

[0018] Preferably, it comprises: a thickening stirrer; the thickening stirrer is arranged in the thickener.

[0019] Preferably, the centrifugal mother liquor tank comprises: a mother liquor agitator; the mother liquor agitator is accommodated in the centrifugal mother liquor tank.

[0020] Preferably, it comprises: a PLC control module; the inlet flow regulating valve, the alarm, and the vibration detector are electrically connected to the PLC control module respectively.

[0021] The beneficial effects of this application include:

[0022] 1) The concentrated brine centrifuge device for ammonium sulfate salt production provided in the present application connects flushing water pipes to the feed and discharge main pipes of the centrifuge respectively, and utilizes the time when the flow is interrupted to fully flush the centrifuge. There is no need to flush the centrifuge separately, thereby increasing the processing capacity and output, and improving production efficiency. The cylinder drives the receiving tray arranged below the solid discharge pipe of the centrifuge to move, and the cylinder drives the receiving tray to move according to the flushing needs to ensure the normal flow of flushing water.

[0023] 2) The concentrated brine centrifuge device for ammonium sulfate production provided in this application detects the vibration of the centrifuge through vibration detectors arranged on both sides of the centrifuge, and sends an alarm signal according to the vibration condition to ensure the reliability of manual monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a concentrated brine centrifugation device for ammonium sulfate production in at least one embodiment provided in this application;

[0025] Figure 2 A partially enlarged schematic diagram of a material guide receiving plate in at least one embodiment provided in this application;

[0026] Figure 3 This is a partially enlarged schematic diagram of the installation state of the air hammer on the feed pipe in at least one embodiment provided in the present application;

[0027] Figure 4 A schematic diagram of a module in at least one embodiment provided in this application;

[0028] Legend:

[0029] Thickener 1, thickening agitator 11, inlet flow regulating valve 121, inlet flow main valve 122, centrifuge 2, centrifugal motor 22, vibration detector 21, alarm 211, PLC control module 212, circulating cooling pipe 231, cooling valve 232, discharge barrel 213, liquid discharge pipe 214, solid centrifuge discharge pipe 215, receiving pipe 25, feed pipe 216, air hammer 217, guide tray 24, slide rail 242, cylinder 241, frame 243, centrifuge mother liquor tank 4, mother liquor agitator 41, flushing water pipe 13, flushing water valve 131. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] The controller used in this embodiment is an existing structure, and the control circuit can be implemented through simple programming by technicians in this field. It is common knowledge in this field and is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0033] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in this field, and can be implemented in a variety of common knowledge settings.

[0034] See also Figures 1 to 4 The concentrated brine centrifuge device for ammonium sulfate salt production provided in this application includes: a flushing water pipe 13; one end of the flushing water pipe 13 is connected to the condensed water storage tank, and the other end is connected to the pipeline connected to the thickener 1 and the centrifuge 2, so that when the inlet flow regulating valve 121 is closed, water is fed into the feed pipe 216 of the centrifuge 2 to flush the centrifuge 2.

[0035] Specifically, the flushing water pipe 13 is also connected to the top of the discharge barrel 213 of the centrifuge 2, the side wall of the solid centrifuge discharge pipe 215, the inner cavity of the centrifuge 2, and the side wall of the guide tray 24. Therefore, when the incoming flow is paused during processing, the condensed water is used to flush various parts of the centrifugal system. After cleaning, it can reduce the time required for individual cleaning and improve production efficiency.

[0036] In one embodiment, the flushing water pipe 13 is connected to the top of the discharge barrel 213, the side wall of the solid centrifugal discharge pipe 215, the inner cavity of the centrifuge 2, and the side wall of the guide tray 24 through a hose. Because the centrifuge 2 vibrates, the use of a hose ensures connection reliability.

[0037] In a specific embodiment, it includes: multiple flushing water valves 131; the flushing water valves 131 are respectively arranged on the pipelines connected to the top of the flushing water pipe 13 and the discharge cylinder 213, the side wall of the solid centrifuge discharge pipe 215, the inner cavity of the centrifuge 2, and the side wall of the guide tray 24, so as to realize the control of the flushing operation according to needs.

[0038] In a specific embodiment, the inflow regulating valve 121 is provided on the feed pipe 216 of the centrifuge 2 ; one end of the feed pipe 216 is connected to the discharge port at the bottom of the thickener 1 , and the other end is connected to the feed port of the centrifuge 2 .

[0039] In one embodiment, the system includes a pair of pneumatic hammers 217, located on either side of the feed pipe 216. These hammers clean material adhering to the inner wall of the feed pipe 216, improving cleaning efficiency and effectiveness. The hammers 217 strike once every five minutes, ensuring proper discharge of concentrated salt slurries of varying viscosities while preventing material from adhering to the wall. The hammers 217 are staggered to maximize their vibration area.

[0040] In one embodiment, the system includes multiple cameras mounted in front of the centrifuge 2. This arrangement allows for remote monitoring of the centrifugation process. The cameras are commonly used industrial cameras and are mounted so that they can clearly see the centrifuge 2 area.

[0041] In a specific embodiment, the flushing water is discharged from the liquid discharge pipe 214 of the centrifuge 2 and passed into the centrifuge mother liquid tank 4. A pipeline is set at the bottom of the guide tray 24 and connected to the centrifuge mother liquid tank 4. A flushing water valve 131 is set on the connecting pipeline.

[0042] The thickener 1 houses a thickening agitator 11. After heating in the thickener 1, the incoming material undergoes preliminary concentration, reducing liquid content and increasing concentration, facilitating centrifugal processing. The thickener 1 is connected to the centrifuge 2 via a pipeline, with an incoming flow regulating valve 121 and an incoming flow master valve 122 intermittently positioned on the connecting pipeline.

[0043] Centrifuge 2 comprises a centrifuge body, a centrifuge motor 22, a circulating cooling pipe 231, a cooling valve 232, a discharge barrel 213, a liquid discharge pipe 214, a solid centrifuge discharge pipe 215, and a receiving pipe 25. Centrifuge 2 is mounted on a housing, with the centrifuge body connected to the centrifuge motor 22. A heat exchange pipe is provided on the inner wall of the housing, connecting to the circulating cooling pipe 231 outside the housing. A cooling valve 232 is provided on the connecting pipe to cool centrifuge 2 according to production needs to ensure normal operation. The circulating cooling water used is condensed water. A discharge barrel 213 is provided at the discharge end of the centrifuge body. After passing through discharge barrel 213, solid and liquid materials are discharged from the solid centrifuge discharge pipe 215 and liquid discharge pipe 214, respectively. A receiving pipe 25 is provided below the solid centrifuge discharge pipe 215, through which the solid material is transported to the screw conveyor for discharge. A guide tray 24 is movably arranged between the solid centrifuge discharge pipe 215 and the receiving pipe 25; when the centrifuge 2 is stopped for flushing, the bottom of the guide tray 24 is placed on the slide rails 242 symmetrically arranged on the top of the receiving pipe 25 and moves along the slide rails 241. The cylinder 241 is set on the frame 243 outside the receiving pipe 25. Driven by the cylinder 241, it moves to the space between the solid centrifuge discharge pipe 215 and the receiving pipe 25 to collect the flushing water and transport it to the centrifuge mother liquid tank 4 through the pipeline. Since the amount of flushing water in this part is small, the flushing water is mainly discharged through the liquid discharge pipe 214, so this structure is used for diversion. When normal production is in progress, the guide tray 24 is reset to the outside of the centrifuge 2 under the drive of the cylinder 241 and leaves the space between the solid centrifuge discharge pipe 215 and the receiving pipe 25.

[0044] The centrifuge 2 and its feeding and discharging system provided in this application are used in large-scale industrial production, so the feeding and discharging ends are respectively arranged on the upper and lower floors of the floor where the centrifuge 2 is located. Those skilled in the art can arrange components such as the rack 243 at a position convenient for setting on the corresponding floor.

[0045] A pipeline is provided on the discharge port of the liquid discharge pipe 214 to communicate with the centrifugal mother liquor tank 4 , so as to discharge the flushing water or the liquid material after centrifugation into the centrifugal mother liquor tank 4 .

[0046] After the liquid material enters the centrifugal mother liquid tank 4, the mother liquid agitator 41 provided in the centrifugal mother liquid tank 4 is stirred, and the volatile gas generated is passed into the tail gas elution tower for treatment to avoid environmental pollution. The collected liquid part is passed into the condensed water storage tank for reuse.

[0047] In a specific embodiment, in order to ensure normal discharge of materials, the material receiving pipe 25 is a cylinder with a larger diameter.

[0048] In one embodiment, the system includes vibration detectors 21 arranged in pairs; the vibration detectors 21 are symmetrically positioned on the housing of the centrifuge 2. The presence of multiple vibration detectors 21 improves the reliability of vibration monitoring results. When the vibration amplitude of the vibration detectors 21 is high, indicating that the material entering the centrifuge 2 cannot be effectively processed and has too high a moisture content, the inlet flow regulating valve 121 is closed, the flushing water valves 131 are opened, and the guide tray 24 is pushed between the centrifuge discharge pipe 215 and the receiving pipe 25 by the air cylinder 241, achieving the effect of equal interval cleaning of the centrifuge 2.

[0049] When monitoring finds abnormality in the feeding of thin material into the centrifuge, manually trigger the HS101 button to perform the above actions.

[0050] After the feeding is normal, click the reset button, close several flushing water pneumatic valves, open the feed valve, use the cylinder to retract the hopper to receive the thinning material, and close the thinning valve.

[0051] The centrifuge 2 used in this application is the centrifuge model HR630-NA of Xiangtan Centrifuge Co., Ltd., and the other detailed parts are the same as the equipment and are not repeated here.

[0052] When the vibration detector 21 of the centrifuge 2 detects that the vibration exceeds the preset value, the alarm 211 electrically connected to the vibration detector 21 will sound an alarm, and the flow regulating valve 121 will be manually operated to control the flow to a reasonable range to ensure that the centrifuge 2 can process normally.

[0053] In one specific embodiment, the inflow control valve 121 is a V-shaped pneumatic control valve made of 2205 material. The pneumatic control valve includes a solenoid valve, an interlocking quick-off function, a five-stage seal, and a handwheel. The inflow control valve 121 can also be electrically connected to a PLC control module 212, which is electrically connected to the vibration detector 21. This allows the inflow control valve 121 to control its opening based on the detection results of the vibration detector 21. Manual opening control can also be performed based on alarm information.

[0054] In one embodiment, the main inlet valve 122 is an automatic pneumatic valve. The main inlet valve 122 can also be electrically connected to the PLC control module 212, which is electrically connected to the vibration detector 21, so that the main inlet valve 122 can be controlled to open and close according to the detection results of the vibration detector 21.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A concentrated brine centrifuge for ammonium sulfate production, characterized in that: include: A centrifuge (2), a vibration detector (21), a flushing water pipeline assembly, an inflow regulating valve (121), and a thickener (1); the feed end of the centrifuge (2) is connected to the thickener (1) through a pipeline, and the inflow regulating valve (121) is provided on the connected pipeline; The vibration detectors (21) are symmetrically arranged in pairs on opposite sides of the centrifuge (2) housing and are electrically connected to the alarm (211); One end of the flushing water pipeline assembly is connected to the condensed water storage tank, and the other end is connected to the centrifuge (2) pipeline.

2. The concentrated brine centrifuge for ammonium sulfate production according to claim 1, wherein: The centrifuge (2) comprises: a centrifugal cavity, a discharge cylinder (213), a solid centrifugal discharge pipe (215), and a feed pipe (216); the liquid outlet of the flushing water pipeline assembly is respectively connected to the centrifugal cavity, the discharge cylinder (213), the solid centrifugal discharge pipe (215), and the feed pipe (216).

3. The concentrated brine centrifuge for ammonium sulfate production according to claim 2, wherein: include: Pneumatic hammers (217) arranged in pairs; The air hammers (217) are arranged on opposite side walls of the feed pipe (216).

4. The concentrated brine centrifuge for ammonium sulfate production according to claim 2, wherein: The discharge cylinder (213) is respectively connected to the liquid discharge pipe (214) and the solid centrifugal discharge pipe (215); the liquid discharge pipe (214) is connected to the centrifugal mother liquid tank (4) pipeline; the solid centrifugal discharge pipe (215) is connected to the screw feeder through the connecting pipe (25).

5. The concentrated brine centrifuge for ammonium sulfate production according to claim 4, wherein: include: A guide tray (24); a solid centrifuge discharge pipe (215) and a material receiving pipe (25) are arranged at intervals; the guide tray (24) is movably arranged between the solid centrifuge discharge pipe (215) and the material receiving pipe (25); a liquid inlet of the guide tray (24) is connected to a flushing water pipeline assembly pipeline; and a liquid outlet of the guide tray (24) is connected to a centrifuge mother liquid tank (4) pipeline.

6. The concentrated brine centrifuge for ammonium sulfate production according to claim 5, characterized in that: include: A frame (243) and a cylinder (241); the cylinders (241) are arranged in pairs on the frame (243) and are drivingly connected to the guide tray (24); slide rails (242) are symmetrically arranged in pairs on the top surface of the material receiving pipe (25); and the guide tray (24) is slidably arranged on the slide rails (242).

7. The concentrated brine centrifuge for ammonium sulfate production according to claim 2, wherein: The flushing water pipeline assembly comprises: a plurality of flushing water pipes (13), a plurality of flushing water valves (131); One end of the flushing water pipe (13) is respectively connected to the condensed water storage tank, and the other end is respectively connected to the top of the discharge barrel (213), the side wall of the solid centrifugal discharge pipe (215), the centrifugal chamber, and the like through a hose; The flushing water valve (131) is respectively arranged on each flushing water pipe (13).

8. The concentrated brine centrifuge for ammonium sulfate production according to claim 1, wherein: include: Thickening stirrer (11); the thickening stirrer (11) is arranged in the thickener (1).

9. The concentrated brine centrifuge for ammonium sulfate production according to claim 1, wherein: The centrifugal mother liquid tank (4) comprises a mother liquid agitator (41); the mother liquid agitator (41) is accommodated in the centrifugal mother liquid tank (4).

10. The concentrated brine centrifuge for ammonium sulfate production according to claim 1, wherein: include: The PLC control module (212); the inflow regulating valve (121), the alarm (211), and the vibration detector (21) are electrically connected to the PLC control module (212) respectively.

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