Precise filtering system for water glass

Abstract

The utility model discloses a precision filtering system for water glass, which comprises a vertical reaction kettle, and one side of the vertical reaction kettle is sequentially provided with a transfer tank, a plate-and-frame filter press, a semi-finished product storage tank, a precision filter and a finished product storage tank from near to far; a discharging pipe is fixedly arranged between the vertical reaction kettle and the transfer tank in a penetrating manner; the transfer tank is provided with a stirring assembly; a first feeding pump set is mounted between the transfer tank and the plate-and-frame filter press; a first collecting tank is arranged at a filtrate outlet of the plate-and-frame filter press, and a second feeding pump set is jointly mounted between the first collecting tank and the semi-finished product storage tank; and a third feeding pump set is arranged between the semi-finished product storage tank and the precision filter. According to the utility model, plate frame type filter pressing and precision filtering are combined, and water insoluble substances in the water glass meet the requirements through two times of filtering.

Description

Technical Field

[0001] The utility model relates to the technical field of water glass filtering, in particular to a water glass precision filtering system. Background Art

[0002] Water glass, commonly known as sodium silicate, is a water-soluble silicate. Its aqueous solution is commonly known as water glass, which is a mineral adhesive. It has the advantages of strong bonding force, high strength, good acid resistance and heat resistance, and is widely used in analytical reagents, fire retardants and adhesives.

[0003] Water glass is produced by the reaction of quartz sand and liquid alkali. However, some impurities are inevitably mixed into the quartz sand during the mining, transportation and storage process. Since solid quartz sand does not have the conditions to separate impurities, all impurities are brought into the water glass. When using water glass as the basic raw material to produce fine silicon chemicals such as white carbon black and silica gel, it is necessary to remove the water-insoluble impurities in the water glass by filtering.

[0004] At present, wet-process water glass mostly uses plate and frame filter press. Due to the reasons of the equipment itself and operation, the water-insoluble matter in the water glass cannot meet the customer's requirements. Utility Model Content

[0005] The utility model is a water glass precision filtering system proposed to solve the shortcomings in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a water glass precision filtration system, comprising a vertical reactor, one side of which is provided with a transfer tank, a plate-and-frame filter press, a semi-finished product storage tank, a precision filter and a finished product storage tank in sequence from near to far;

[0007] A discharge pipe is fixedly connected between the vertical reactor and the transfer tank;

[0008] The transfer tank is equipped with a stirring assembly;

[0009] A first feed pump group is installed between the transfer tank and the plate-frame filter press;

[0010] A first collecting tank is provided at the filtrate outlet of the plate-frame filter press, and a second feeding pump group is installed between the first collecting tank and the semi-finished product storage tank;

[0011] A third feeding pump group is installed between the semi-finished product storage tank and the precision filter;

[0012] A second collecting tank is provided at the filtrate outlet of the precision filter, and a fourth feeding pump group is installed between the second collecting tank and the finished product storage tank.

[0013] Furthermore, the stirring assembly includes a motor, and the motor is fixedly installed on the top of the transfer tank. The driving end of the motor is fixedly connected to a rotating shaft, and the rotating shaft passes through the transfer tank and is rotatably connected thereto. A plurality of stirring rods are fixedly connected to the outer surface of the rotating shaft. The slurry in the transfer tank is a mixture of water glass and unreacted quartz sand. The stirring assembly can prevent the precipitation of quartz sand.

[0014] Furthermore, the first feed pump group includes a first filter press pump, the input end and the output end of the first filter press pump are fixedly penetrated by a first feed pipe, and the other ends of the two first feed pipes are respectively fixedly penetrated by the adjacent transfer tank and the plate and frame filter press, so that the slurry in the transfer tank can be transported to the plate and frame filter press.

[0015] Furthermore, the second feeding pump group includes a first mud pump, the input end and the output end of the first mud pump are fixedly penetrated by a second feeding pipe, and the other ends of the two second feeding pipes are respectively fixedly penetrated by the adjacent first collecting tank and the semi-finished product storage tank, so that the filtrate can be transported to the semi-finished product storage tank.

[0016] Furthermore, the third feeding pump group includes a second filter press pump, the input end and the output end of the second filter press pump are fixedly penetrated by a third feeding pipe, and the other ends of the two third feeding pipes are respectively fixedly penetrated by adjacent semi-finished product storage tanks and precision filters, so that the filtrate in the finished product storage tank can be transported to the precision filter.

[0017] Furthermore, the fourth feeding pump group includes a second mud pump, the input and output ends of the second mud pump are fixedly connected with a fourth feeding pipe, and the other ends of the two fourth feeding pipes are respectively fixedly connected with the adjacent second collecting tank and the finished product storage tank, so that the filtrate after re-filtration can be transported to the finished product storage tank.

[0018] Furthermore, the discharge pipe, the first feed pipe, the second feed pipe, the third feed pipe and the fourth feed pipe are all equipped with control valves to facilitate the opening and closing of the discharge pipe, the first feed pipe, the second feed pipe, the third feed pipe and the fourth feed pipe.

[0019] Beneficial effects of the utility model:

[0020] When the utility model is in use, the water glass precision filtering system combines the plate-frame type filter pressing and the precision filtering, and through two filtrations, the water insoluble matters in the water glass can meet the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 : Schematic diagram of the overall structure of the utility model;

[0023] Figure 2 : Schematic diagram of the connection between the transfer tank and the stirring assembly of the utility model.

[0024] The reference numerals are as follows:

[0025] 1. Vertical reactor; 2. Discharge pipe; 3. Transfer tank; 4. First filter press pump; 5. First feed pipe; 6. Plate and frame filter press; 7. First collecting tank; 8. First mud pump; 9. Second feed pipe; 10. Semi-finished product storage tank; 11. Second filter press pump; 12. Control valve; 13. Third feed pipe; 14. Precision filter; 15. Second collecting tank; 16. Second mud pump; 17. Fourth feed pipe; 18. Finished product storage tank; 19. Motor; 20. Rotating shaft; 21. Stirring rod. DETAILED DESCRIPTION

[0026] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 to Figure 2 As shown, it relates to a precision filtration system for water glass, including a vertical reactor 1, on one side of which are arranged a transfer tank 3, a plate and frame filter press 6, a semi-finished product storage tank 10, a precision filter 14 and a finished product storage tank 18 in sequence from near to far.

[0028] A discharge pipe 2 is fixedly connected between the vertical reactor 1 and the transfer tank 3 , and the slurry in the vertical reactor 1 can enter the transfer tank 3 through the discharge pipe 2 .

[0029] The transfer tank 3 is equipped with a stirring assembly, which includes a motor 19, and the motor 19 is fixedly installed on the top of the transfer tank 3. The driving end of the motor 19 is fixedly connected to a rotating shaft 20, and the rotating shaft 20 passes through the transfer tank 3 and is rotatably connected thereto. A plurality of stirring rods 21 are fixedly connected to the outer surface of the rotating shaft 20. The slurry entering the transfer tank 3 is a mixture of water glass and unreacted quartz sand. In order to prevent the quartz sand from settling, the motor 19 must be turned on. The motor 19 drives the rotating shaft 20 and the stirring rods 21 to rotate to stir the slurry.

[0030] A first feeding pump group is installed between the transfer tank 3 and the plate-frame filter press 6. The first feeding pump group includes a first filter press pump 4. The input end and the output end of the first filter press pump 4 are fixedly penetrated with a first feeding pipe 5, and the other ends of the two first feeding pipes 5 are respectively fixedly penetrated with the adjacent transfer tank 3 and the plate-frame filter press 6. When the first filter press pump 4 is started, the first filter press pump 4 transports the slurry in the transfer tank 3 to the plate-frame filter press 6 through the two first feeding pipes 5 for filtration.

[0031] A first collecting tank 7 is provided at the filtrate outlet of the plate and frame filter press 6, and a second feeding pump group is installed between the first collecting tank 7 and the semi-finished product storage tank 10. The second feeding pump group includes a first mud pump 8. The input end and the output end of the first mud pump 8 are fixedly penetrated with a second feeding pipe 9, and the other ends of the two second feeding pipes 9 are respectively fixedly penetrated with the adjacent first collecting tank 7 and the semi-finished product storage tank 10. The filtrate after filtration falls into the first collecting tank 7, and then is transported to the semi-finished product storage tank 10 through the cooperation of the first mud pump 8 and the second feeding pipe 9.

[0032] A third feeding pump group is installed between the semi-finished product storage tank 10 and the precision filter 14. The third feeding pump group includes a second filter press pump 11. The input end and the output end of the second filter press pump 11 are fixedly penetrated with a third feeding pipe 13, and the other ends of the two third feeding pipes 13 are respectively fixedly penetrated with the adjacent semi-finished product storage tank 10 and the precision filter 14. When the second filter press pump 11 is running, the second filter press pump 11 is transported to the precision filter 14 through the third feeding pipe 13 for filtration.

[0033] A second collecting tank 15 is provided at the filtrate outlet of the precision filter 14, and a fourth feeding pump group is installed between the second collecting tank 15 and the finished product storage tank 18. The fourth feeding pump group includes a second mud pump 16. The input end and the output end of the second mud pump 16 are fixedly penetrated with a fourth feeding pipe 17, and the other ends of the two fourth feeding pipes 17 are respectively fixedly penetrated with the adjacent second collecting tank 15 and the finished product storage tank 18. The filtered water glass falls into the second collecting tank 15, and then is transported to the finished product storage tank 18 through the second mud pump 16 and the fourth feeding pipe 17.

[0034] The discharge pipe 2, the first feeding pipe 5, the second feeding pipe 9, the third feeding pipe 13 and the fourth feeding pipe 17 are all equipped with a control valve 12. The setting of the control valve 12 is conducive to controlling the opening and closing of the discharge pipe 2, the first feeding pipe 5, the second feeding pipe 9, the third feeding pipe 13 and the fourth feeding pipe 17.

[0035] Working principle: the water glass that has completed the reaction is firstly exhausted and decompressed (waste heat is recovered), and then enters the transfer tank 3 through the control valve 12 and the discharge pipe 2. The stirring assembly is operated to prevent the water glass slurry in the transfer tank 3 from settling, and then the first filter press pump 4, the second filter press pump 11, the first mud pump 8 and the second mud pump 16 are started. The first filter press pump 4 conveys the slurry in the transfer tank 3 to the plate and frame filter press 6 for filtration through the two first feeding pipes 5. The filtrate after filtration falls into the first collecting tank 7, and then is conveyed to the semi-finished product storage tank 10 through the first mud pump 8 and the second feeding pipe 9. Then, the second filter press pump 11 conveys it to the precision filter 14 through the third feeding pipe 13 for filtration. The filtered water glass falls into the second collecting tank 15, and then is conveyed to the finished product storage tank 18 through the second mud pump 16 and the fourth feeding pipe 17.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A water glass precision filtration system, comprising a vertical reactor (1), characterized in that: A transfer tank (3), a plate and frame filter press (6), a semi-finished product storage tank (10), a precision filter (14) and a finished product storage tank (18) are arranged in order from near to far on one side of the vertical reactor (1); A discharge pipe (2) is fixedly connected between the vertical reactor (1) and the transfer tank (3); The transfer tank (3) is equipped with a stirring assembly; A first feed pump set is installed between the transfer tank (3) and the plate-and-frame filter press (6); A first collecting tank (7) is provided at the filtrate outlet of the plate-and-frame filter press (6), and a second feed pump assembly is installed between the first collecting tank (7) and the semi-finished product storage tank (10); A third feed pump assembly is installed between the semi-finished product storage tank (10) and the precision filter (14); A second collecting tank (15) is provided at the filtrate outlet of the precision filter (14), and a fourth feeding pump group is installed between the second collecting tank (15) and the finished product storage tank (18).

2. The water glass precision filtration system according to claim 1, characterized in that: The stirring assembly comprises a motor (19), and the motor (19) is fixedly mounted on the top of the transfer tank (3), a driving end of the motor (19) is fixedly connected to a rotating shaft (20), and the rotating shaft (20) passes through the transfer tank (3) and is rotatably connected thereto, and a plurality of stirring rods (21) are fixedly connected to the outer surface of the rotating shaft (20).

3. The water glass precision filtration system according to claim 1, characterized in that: The first feed pump group comprises a first filter press pump (4), the input end and the output end of the first filter press pump (4) are both fixedly connected with a first feed pipe (5), and the other ends of the two first feed pipes (5) are respectively fixedly connected with the adjacent transfer tank (3) and the plate and frame filter press (6).

4. The water glass precision filtration system according to claim 3, characterized in that: The second feed pump assembly comprises a first mud pump (8), the input end and the output end of the first mud pump (8) are both fixedly connected with a second feed pipe (9), and the other ends of the two second feed pipes (9) are respectively fixedly connected with the adjacent first collecting tank (7) and the semi-finished product storage tank (10).

5. The water glass precision filtration system according to claim 4, characterized in that: The third feed pump assembly comprises a second filter press pump (11), the input end and the output end of the second filter press pump (11) are both fixedly connected with a third feed pipe (13), and the other ends of the two third feed pipes (13) are fixedly connected with the adjacent semi-finished product storage tank (10) and the precision filter (14), respectively.

6. The water glass precision filtration system according to claim 5, characterized in that: The fourth feed pump assembly comprises a second mud pump (16), the input end and the output end of the second mud pump (16) are both fixedly connected with a fourth feed pipe (17), and the other ends of the two fourth feed pipes (17) are respectively fixedly connected with the adjacent second collecting tank (15) and the finished product storage tank (18).

7. The water glass precision filtration system according to claim 6, characterized in that: The discharge pipe (2), the first feed pipe (5), the second feed pipe (9), the third feed pipe (13) and the fourth feed pipe (17) are all equipped with control valves (12).

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