Recovery device for feed-grade calcium hydrogen phosphate mother liquor produced by wet process

Abstract

The utility model discloses a recovery device for feed-grade calcium hydrogen phosphate mother liquor produced by a wet process, which relates to the technical field of chemical engineering and comprises a heating tank main body, a liquid injection mechanism, a reaction mechanism and a concentration mechanism, the liquid injection mechanism is mounted at the upper end of the heating tank main body, and the reaction mechanism is mounted at one end of the heating tank main body. A concentration mechanism is mounted at one end of the heating tank main body. Through the arrangement of the heating tank main body and the liquid injection mechanism, the slideway bearing frame is arranged at the mother liquid outlet of the calcium hydrophosphate equipment, the liquid collecting hopper is clamped in the slideway bearing frame, the sealing strip is arranged at the upper end of the slideway bearing frame to seal the liquid collecting hopper and the equipment, and the leakage net and the filter cotton are arranged in the liquid collecting hopper, so that the liquid collecting hopper and the equipment are sealed. And after the booster pump is started, the mother liquid passes through the leakage net and the filter cotton in the liquid collecting hopper and then is injected into the heating tank main body through the high-pressure hose, so that the collecting efficiency and purity of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor. Background Art

[0002] Phosphoric acid is an important chemical raw material and intermediate. There are two main methods for producing phosphoric acid: wet method and thermal method. Kiln method phosphoric acid is under development. Wet method phosphoric acid is produced by decomposing inorganic acid and phosphate rock. Wet method phosphoric acid is mainly used for the production of agricultural phosphate fertilizer. Now there are some purification of wet method phosphoric acid to produce phosphoric acid with better quality. The mother liquor needs to be recovered and processed again. The recovery efficiency of existing equipment is not good. Therefore, a recovery device for wet method production of feed grade calcium hydrogen phosphate mother liquor is needed.

[0003] The existing recovery device for feed-grade calcium hydrogen phosphate mother liquor cannot effectively improve the collection efficiency and purity of the device during operation, and cannot effectively improve the reaction rate of the device, and cannot improve the practicality of the device production. Therefore, a recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor, so as to solve the problem that the existing wet-process production of feed-grade calcium hydrogen phosphate mother liquor recovery device cannot effectively improve the collection efficiency and purity of the device when in use, and cannot effectively improve the reaction rate of the device, and cannot improve the practicability of the device production.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor, comprising a heating tank body, a liquid injection mechanism, a reaction mechanism and a concentration mechanism, wherein the liquid injection mechanism is installed at the upper end of the heating tank body.

[0006] A reaction mechanism is installed at one end of the heating tank body, and the reaction mechanism includes a motor, a stirring shaft, a hopper, a cover shaft and a sealing cover. A motor is installed at the lower end of the heating tank body, a stirring shaft is installed at the upper end of the motor, a hopper is installed at the upper end of the heating tank body, a cover shaft is installed at the upper end of the hopper, and a sealing cover is installed at one end of the cover shaft.

[0007] A concentrating mechanism is installed at one end of the heating tank body, and the concentrating mechanism includes a temperature controller, a steam port, a steam guide pipe, a sealing pipe shaft, a sealing pipe cover, and a tank support frame. A temperature controller is installed at one end of the heating tank body, a steam port is opened at the upper end of the heating tank body, a steam guide pipe is installed at one end of the steam port, a sealing pipe shaft is installed at one end of the steam guide pipe, a sealing pipe cover is installed at one end of the sealing pipe shaft, and a tank support frame is installed at the outer end of the heating tank body.

[0008] Preferably, the liquid injection mechanism includes a connecting tube, a high-pressure hose, a boosting pump, a liquid collecting bucket, a filter screen, filter cotton, a sealing strip and a slideway frame. A connecting tube is installed on the upper end of the heating tank body, a high-pressure hose is installed on one end of the connecting tube, a boosting pump is installed on one end of the high-pressure hose, a liquid collecting bucket is installed on one end of the boosting pump, a filter screen is installed on the inner end of the liquid collecting bucket, filter cotton is installed on the inner end of the filter screen, a sealing strip is installed on the upper end of the liquid collecting bucket, and a slideway frame is installed on the outer end of the liquid collecting bucket.

[0009] Preferably, the leakage net is snap-connected with the liquid collecting bucket, and the high-pressure hose is threadedly connected with the heating tank body through a connecting tube.

[0010] Preferably, the cover forms a rotating structure with the hopper through a cover connecting shaft, and the stirring shaft is symmetrically arranged with respect to the central axis of the heating tank body.

[0011] Preferably, the tube sealing cover forms a rotating structure with the steam guiding tube via the tube sealing shaft, and the steam guiding tube is snap-connected with the steam port.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model installs the slideway frame at the mother liquid outlet of the calcium hydrogen phosphate equipment through the heating tank body and the liquid injection mechanism, and inserts the liquid collecting hopper into the slideway frame. A sealing strip is installed at the upper end of the slideway frame to seal the liquid collecting hopper and the equipment, and a leakage net and filter cotton are arranged inside the liquid collecting hopper. After the mother liquid passes through the leakage net and filter cotton in the liquid collecting hopper, the booster pump is started and injected into the heating tank body through a high-pressure hose, thereby improving the collection efficiency and purity of the device;

[0014] 2. The utility model can store the required reactants in the hopper installed in the device through the heating tank body and the reaction mechanism, operate the cover to rotate on the cover shaft to temporarily seal and store the reactants, turn on the switch set at the lower end of the hopper, inject a proper amount of reactants into the heating tank body, and start the motor to drive the rotation of the stirring shaft. The double stirring shaft increases the reaction rate of the device;

[0015] 3. The utility model provides a heating tank body and a concentrating mechanism, and operates a temperature controller to heat the heating tank body to perform distillation and concentration operations. At this time, the sealing tube cover on the rotating sealing tube shaft performs steam exhaust operations, thereby improving the practicability of the device production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front cross-sectional view of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the liquid injection mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the reaction mechanism of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the concentration mechanism of the utility model.

[0020] In the figure: 1. Heating tank body; 2. Liquid injection mechanism; 201. Connecting tube; 202. High-pressure hose; 203. Booster pump; 204. Liquid collecting bucket; 205. Screen; 206. Filter cotton; 207. Sealing strip; 208. Slideway frame; 3. Reaction mechanism; 301. Motor; 302. Stirring shaft; 303. Material placing hopper; 304. Connecting cover shaft; 305. Sealing cover; 4. Concentrating mechanism; 401. Temperature controller; 402. Steam port; 403. Steam guide pipe; 404. Sealing tube shaft; 405. Sealing tube cover; 406. Tank support frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0022] The following describes an embodiment of the utility model based on its overall structure.

[0023] See also Figure 1-4 A recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor, comprising a heating tank body 1, a liquid injection mechanism 2, a reaction mechanism 3 and a concentration mechanism 4, wherein the upper end of the heating tank body 1 is provided with the liquid injection mechanism 2, and the liquid injection mechanism 2 comprises a connecting tube 201, a high-pressure hose 202, a booster pump 203, a liquid collecting bucket 204, a leakage net 205, a filter cotton 206, a sealing strip 207 and a slideway frame 208, and the upper end of the heating tank body 1 is provided with a connecting tube 201, and one end of the connecting tube 201 is provided with a high pressure hose 202, a booster pump 203, a liquid collecting bucket 204, a leakage net 205, a filter cotton 206, a sealing strip 207 and a slideway frame 208. A high-pressure hose 202 is provided, a boosting pump 203 is installed at one end of the high-pressure hose 202, a liquid collecting bucket 204 is installed at one end of the boosting pump 203, a leakage screen 205 is installed at the inner end of the liquid collecting bucket 204, a filter cotton 206 is installed at the inner end of the leakage screen 205, a sealing strip 207 is installed at the upper end of the liquid collecting bucket 204, a slideway frame 208 is installed at the outer end of the liquid collecting bucket 204, the leakage screen 205 is snap-connected with the liquid collecting bucket 204, and the high-pressure hose 202 is threadedly connected to the heating tank body 1 through the connecting tube 201.

[0024] See also Figure 1-4A recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor, a reaction mechanism 3 is installed at one end of a heating tank body 1, the reaction mechanism 3 includes a motor 301, a stirring shaft 302, a hopper 303, a cover shaft 304 and a cover 305, the motor 301 is installed at the lower end of the heating tank body 1, the stirring shaft 302 is installed at the upper end of the motor 301, the hopper 303 is installed at the upper end of the heating tank body 1, the cover shaft 304 is installed at the upper end of the hopper 303, the cover shaft 304 is installed at one end of the cover shaft 304, and the cover 305 forms a rotating structure with the hopper 303 through the cover shaft 304, The stirring shaft 302 is symmetrically arranged with respect to the central axis of the heating tank body 1, the slide frame 208 is installed at the mother liquor outlet of the calcium hydrogen phosphate equipment, and the liquid collecting hopper 204 is inserted into the slide frame 208, and a sealing strip 207 is installed at the upper end of the slide frame 208 to seal the liquid collecting hopper 204 and the equipment, and a leakage net 205 and filter cotton 206 are arranged inside the liquid collecting hopper 204. After the booster pump 203 is started, after the mother liquor passes through the leakage net 205 and filter cotton 206 in the liquid collecting hopper 204, it is injected into the heating tank body 1 through the high-pressure hose 202, thereby improving the collection efficiency and purity of the device.

[0025] See also Figure 1-4 A recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor, a heating tank body 1 is provided with a concentration mechanism 4 at one end, the concentration mechanism 4 comprises a temperature controller 401, a steam port 402, a steam guide pipe 403, a sealing pipe shaft 404, a sealing pipe cover 405, and a tank support frame 406, a heating tank body 1 is provided with a temperature controller 401 at one end, a steam port 402 is provided at the upper end of the heating tank body 1, a steam port 402 is provided at one end of the steam port 402, a sealing pipe 404 is provided at one end of the steam guide pipe 403, a sealing pipe shaft 404 is provided at one end of the sealing pipe shaft 404, a sealing pipe cover 405 is provided at one end of the heating tank body 1, and a heating tank body 1 is provided with a temperature controller 401, a steam port 402 is provided at the upper end of the heating tank body 1, a steam port 402 is provided at one end of the steam port 402, a sealing pipe shaft 404 is provided at one end of the steam guide pipe 403, a sealing pipe cover 405 is provided at one end of the sealing pipe shaft 404, and a heating tank body 1 is provided with a temperature controller 401, a steam port 402 is provided at the upper end of the heating tank body 1, a steam port 402 is provided at one end of the steam port 402, a sealing pipe shaft 404 is provided at one end of the sealing pipe shaft 404, and a sealing pipe cover 405 is provided at one end of the heating tank body 1. A tank support frame 406 is installed at the end, and the sealing tube cover 405 forms a rotating structure with the steam guide pipe 403 through the sealing tube shaft 404, and the steam guide pipe 403 is engaged with the steam port 402. The required reactants are stored in the hopper 303 installed in the device, and the sealing cover 305 is operated to rotate on the cover shaft 304 to temporarily seal and store the reactants, and the switch set at the lower end of the hopper 303 is turned on, and the reactants are injected into the heating tank body 1 in an appropriate amount, and the motor 301 is started to drive the rotation of the stirring shaft 302. The double stirring shaft 302 improves the reaction rate of the device.

[0026] Working principle: When in use, the slide frame 208 is preferably installed at the mother liquid outlet of the calcium hydrogen phosphate equipment, and the liquid collecting hopper 204 is inserted into the slide frame 208. A sealing strip 207 is installed at the upper end of the slide frame 208 to seal the liquid collecting hopper 204 and the equipment. A leakage net 205 and filter cotton 206 are arranged inside the liquid collecting hopper 204. The booster pump 203 is started. After the mother liquid passes through the leakage net 205 and filter cotton 206 in the liquid collecting hopper 204, it is injected into the heating tank body 1 through the high-pressure hose 202 to improve the efficiency and purity of the device collection, and the required reactants are stored in the hopper 303. The cover 30 is operated. The reactants are temporarily sealed and stored by rotating on the cover shaft 304, the switch set at the lower end of the hopper 303 is turned on, and a proper amount of reactants are injected into the heating tank body 1, and the motor 301 is started to drive the stirring shaft 302 to rotate. The double stirring shaft 302 increases the reaction rate of the device, and the temperature controller 401 is operated to increase the temperature of the heating tank body 1 to perform distillation and concentration operations. At this time, the sealing tube cover 405 on the sealing tube shaft 404 is rotated to perform steam exhaust operations to improve the practicality of the device production. In this way, the use process of the device is completed. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0027] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A recovery device for wet-process production of feed-grade calcium hydrogen phosphate mother liquor, comprising a heating tank body (1), a liquid injection mechanism (2), a reaction mechanism (3) and a concentration mechanism (4), characterized in that: A liquid injection mechanism (2) is installed at the upper end of the heating tank body (1); A reaction mechanism (3) is installed at one end of the heating tank body (1), and the reaction mechanism (3) comprises a motor (301), a stirring shaft (302), a material placing hopper (303), a cover connecting shaft (304) and a cover (305); the motor (301) is installed at the lower end of the heating tank body (1), the stirring shaft (302) is installed at the upper end of the motor (301), the material placing hopper (303) is installed at the upper end of the heating tank body (1), the cover connecting shaft (304) is installed at the upper end of the material placing hopper (303), and the cover connecting shaft (304) is installed at one end of the cover connecting shaft (304); A concentration mechanism (4) is installed at one end of the heating tank body (1), and the concentration mechanism (4) comprises a temperature controller (401), a steam port (402), a steam guide pipe (403), a tube sealing shaft (404), a tube sealing cover (405), and a tank support frame (406). A temperature controller (401) is installed at one end of the heating tank body (1), a steam port (402) is provided at the upper end of the heating tank body (1), a steam guide pipe (403) is installed at one end of the steam port (402), a tube sealing shaft (404) is installed at one end of the steam guide pipe (403), a tube sealing cover (405) is installed at one end of the tube sealing shaft (404), and a tank support frame (406) is installed at the outer end of the heating tank body (1).

2. A recovery device for producing feed-grade calcium hydrogen phosphate mother liquor by a wet process according to claim 1, characterized in that: The liquid injection mechanism (2) comprises a connecting tube (201), a high-pressure hose (202), a booster pump (203), a liquid collecting bucket (204), a filter net (205), filter cotton (206), a sealing strip (207) and a slideway support frame (208); the upper end of the heating tank body (1) is equipped with a connecting tube (201); one end of the connecting tube (201) is equipped with a high-pressure hose (202); one end of the high-pressure hose (202) is equipped with a booster pump (203); one end of the booster pump (203) is equipped with a liquid collecting bucket (204); the inner end of the liquid collecting bucket (204) is equipped with a filter net (205); the inner end of the filter net (205) is equipped with a filter cotton (206); the upper end of the liquid collecting bucket (204) is equipped with a sealing strip (207); and the outer end of the liquid collecting bucket (204) is equipped with a slideway support frame (208).

3. A recovery device for producing feed-grade calcium hydrogen phosphate mother liquor by a wet process according to claim 2, characterized in that: The leakage net (205) is snap-connected with the liquid collecting bucket (204), and the high-pressure hose (202) is threadedly connected with the heating tank body (1) via a connecting tube (201).

4. A recovery device for producing feed-grade calcium hydrogen phosphate mother liquor by a wet process according to claim 1, characterized in that: The sealing cover (305) forms a rotating structure with the material placing hopper (303) via the cover connecting shaft (304), and the stirring shaft (302) is symmetrically arranged with respect to the central axis of the heating tank body (1).

5. A recovery device for producing feed-grade calcium hydrogen phosphate mother liquor by a wet process according to claim 1, characterized in that: The pipe sealing cover (405) forms a rotating structure with the steam guide pipe (403) via the pipe sealing shaft (404), and the steam guide pipe (403) is snap-fitted and connected to the steam port (402).

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