Crystallizing tank for preparing sodium metasilicate pentahydrate by mother liquor circulation method

Abstract

The utility model discloses a crystallizing tank for preparing sodium metasilicate pentahydrate by a mother liquor circulation method, which comprises a tank body, the top of the tank body is fixedly connected with channel steel, the top of the channel steel is fixedly connected with a seat ring, the top of the seat ring is fixedly connected with a base, and the top of the base is fixedly connected with a speed reducing motor. The bottom of an output shaft of the gear motor is fixedly connected with a stirring shaft, and the outer wall of the stirring shaft is fixedly connected with a stirring frame. By arranging the channel steel, the seat ring, the base, the speed reducing motor, the stirring shaft, the stirring frame, the annular partition plate, the disc-shaped pipe, the inlet pipe and the discharge pipe, the stirring shaft and the stirring frame rotate to stir various raw materials, and slurry can be heated and concentrated subsequently; by arranging the vertical sleeve, the sampling pipe, the hoop, the ball valve, the screwed joint and the sampling tank, after sampling at different depths in the tank body through the sampling pipe, the accuracy of a Bauhnow concentration value of slurry is ensured, so that raw materials are prevented from being circularly added for many times.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium metasilicate pentahydrate production equipment, in particular to a crystallization tank for preparing sodium metasilicate pentahydrate by a mother liquid circulation method. Background Art

[0002] Sodium metasilicate pentahydrate is a colorless and transparent crystal that is easily soluble in water with high solubility. Sodium metasilicate pentahydrate is widely used in household laundry detergents and laundry creams because it can provide excellent buffer alkalinity in detergents, provide corrosion protection for light metals (aluminum, zinc, etc.), protect glassware and porcelain, and has the properties of suspending and emulsifying dirt and softening water to a certain extent. It can also clean the external oil stains of engines. In the preparation process of sodium metasilicate pentahydrate, the weighed raw materials need to be transported to the crystallization tank by a sludge pump for stirring and mixing.

[0003] In the prior art, during the preparation of sodium metasilicate pentahydrate, a variety of raw materials are stirred and mixed in a crystallizer for a period of time. This process requires sampling to detect the sodium metasilicate pentahydrate concentration. The next step can only be performed when the sodium metasilicate concentration reaches a certain numerical range. Otherwise, the raw material content and slurry weight need to be recalculated and the raw materials need to be added in a cycle. The existing sampling method uses the operator and the sampler to perform surface sampling, which cannot meet the requirements of not using deep sampling. Therefore, we propose a mother liquor circulation method for preparing a crystallizer for sodium metasilicate pentahydrate to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a crystallization tank for preparing sodium metasilicate pentahydrate by a mother liquor circulation method.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A crystallization tank for preparing sodium metasilicate pentahydrate by a mother liquor circulation method comprises a tank body, the top of the tank body is fixedly connected to a channel steel, the top of the channel steel is fixedly connected to a seat ring, the top of the seat ring is fixedly connected to a base, the top of the base is fixedly connected to a reduction motor, the bottom of the reduction motor output shaft is fixedly connected to a stirring shaft, the outer wall of the stirring shaft is fixedly connected to a stirring frame, the inner wall of the tank body is fixedly connected to an annular partition, the outer wall of the annular partition is fixedly installed with a disc tube, the tank body and the annular partition are fixedly connected to the same vertical sleeve, and a sampling mechanism is provided inside the tank body.

[0007] Preferably, the sampling mechanism includes a sampling tube, the inner wall of the vertical sleeve is slidably connected to the outer wall of the sampling tube, the outer wall of the sampling tube is sleeved with a clamp, the outer wall of the clamp is fixedly connected to the outer wall of the tank body, a ball valve is fixedly installed on the outer wall of the sampling tube, a threaded joint is fixedly connected to the bottom of the sampling tube, the inner wall of the threaded joint is threadedly connected to the sampling tank, the ball valve is provided to control the slurry from entering the sampling tank, and a sealing gasket is installed on the inner wall of the vertical sleeve to ensure the sealing between the sampling tube and the vertical sleeve.

[0008] Preferably, one end of the coiled tube is fixedly connected with an inlet tube, and the other end of the coiled tube is fixedly connected with a discharge tube.

[0009] Preferably, the outer wall of the tank body is provided with two mounting holes, and the inner walls of the two mounting holes are fixedly connected to the outer walls of the inlet pipe and the outlet pipe respectively.

[0010] Preferably, an angle steel ring is fixedly connected to the outer wall of the tank body, and two supporting legs are fixedly connected between the tank body and the channel steel, and the channel steel is fixed to the top of the tank body by providing the supporting legs.

[0011] Preferably, a discharge pipe is fixedly connected to the bottom of the tank body, and a valve is fixedly installed on the outer wall of the discharge pipe, and the discharge of slurry from the tank body is controlled by setting the valve.

[0012] Preferably, a sliding hole is opened on the outer wall of the tank body, and the inner wall of the sliding hole is slidably connected to the outer wall of the sampling tube.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] This solution arranges channel steel, seat ring, base, reduction motor, stirring shaft, stirring frame, annular partition, disc pipe, inlet pipe and outlet pipe. The stirring shaft and stirring frame rotate to stir various raw materials, and the slurry can be heated and concentrated later. By arranging vertical sleeves, sampling tubes, clamps, ball valves, threaded joints and sampling tanks, after sampling at different depths in the tank body through the sampling tube, the accuracy of the slurry concentration value is ensured to avoid multiple cycles of raw material addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 It is a schematic cross-sectional structure diagram of a crystallization tank for preparing sodium metasilicate pentahydrate by a mother liquor circulation method proposed in the utility model;

[0017] Figure 2 This is a schematic diagram of the stirring shaft and stirring frame structure of a crystallization tank for preparing sodium metasilicate pentahydrate by the mother liquor circulation method proposed in the utility model;

[0018] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a crystallization tank for preparing sodium metasilicate pentahydrate by the mother liquor circulation method proposed in the utility model;

[0019] Figure 4 This is a schematic diagram of the stirring shaft structure of a crystallization tank for preparing sodium metasilicate pentahydrate by the mother liquor circulation method proposed in the utility model;

[0020] Figure 5 The utility model proposes a mother liquor circulation method for preparing sodium metasilicate pentahydrate using a crystallization tank Figure 1 A schematic diagram of the enlarged structure of part A in the figure.

[0021] In the figure: 1. tank body; 2. channel steel; 3. seat ring; 4. base; 5. reduction motor; 6. stirring shaft; 7. stirring frame; 8. annular partition; 9. disc pipe; 10. inlet pipe; 11. outlet pipe; 12. angle steel ring; 13. supporting leg; 14. discharge pipe; 15. vertical sleeve; 16. sampling tube; 17. clamp; 18. ball valve; 19. threaded joint; 20. sampling tank. DETAILED DESCRIPTION

[0022] 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.

[0023] Depend on Figure 1-Figure 5 As shown, a crystallization tank for preparing sodium metasilicate pentahydrate by a mother liquor circulation method is involved, comprising a tank body 1, a channel steel 2 is fixedly connected to the top of the tank body 1, a seat ring 3 is fixedly connected to the top of the channel steel 2, a base 4 is fixedly connected to the top of the seat ring 3, a reduction motor 5 is fixedly connected to the top of the base 4, the channel steel 2 supports the reduction motor 5, a stirring shaft 6 is fixedly connected to the bottom of the output shaft of the reduction motor 5, a stirring frame 7 is fixedly connected to the outer wall of the stirring shaft 6, the reduction motor 5 drives the stirring shaft 6 to rotate when it is running, and the stirring shaft 6 drives the stirring frame 7 to rotate when it rotates, so as to stir a variety of raw materials.

[0024] An annular partition 8 is fixedly connected to the inner wall of the tank body 1, and a disc pipe 9 is fixedly installed on the outer wall of the annular partition 8. An inlet pipe 10 is fixedly connected to one end of the disc pipe 9, and an outlet pipe 11 is fixedly connected to the other end of the disc pipe 9. The steam generated by the existing steam generator enters the disc pipe 9 through the inlet pipe 10, and the slurry is heated by the annular partition 8 with high thermal conductivity. Two mounting holes are provided on the outer wall of the tank body 1, and the inner walls of the two mounting holes are fixedly connected to the outer walls of the inlet pipe 10 and the outlet pipe 11 respectively.

[0025] An angle steel ring 12 is fixedly connected to the outer wall of the tank body 1, two supporting legs 13 are fixedly connected between the tank body 1 and the channel steel 2, a discharge pipe 14 is fixedly connected to the bottom of the tank body 1, a valve is fixedly installed on the outer wall of the discharge pipe 14, and a vertical sleeve 15 is fixedly connected between the tank body 1 and the annular partition 8.

[0026] A sampling mechanism is provided inside the tank body 1, and the sampling mechanism includes a sampling tube 16. A sliding hole is provided on the outer wall of the tank body 1, and the inner wall of the sliding hole is slidably connected to the outer wall of the sampling tube 16. The vertical sleeve 15 assists the sampling tube 16 to move up and down, and the inner wall of the vertical sleeve 15 is slidably connected to the outer wall of the sampling tube 16. The outer wall of the sampling tube 16 is sleeved with a clamp 17, and the clamp 17 is a hinged manner of two clamps, and then locked by an existing bolt. One of the clamps of the clamp 17 is rotated to squeeze it onto the outer wall of the sampling tube 16, and the bolts are rotated to fix the two clamps on the sampling tube 16 to complete the position fixation of the sampling tube 16. The outer wall of the clamp 17 is fixedly connected to the outer wall of the tank body 1, and a ball valve 18 is fixedly installed on the outer wall of the sampling tube 16. After the ball valve 18 is opened, the slurry enters the sampling tank 20 along the sampling tube 16, and the bottom of the sampling tube 16 is fixedly connected with a threaded joint 19, and the inner wall of the threaded joint 19 is threadedly connected with the sampling tank 20.

[0027] Working principle: The weighed raw materials are transported to the tank body 1 in sequence through the sludge pump, the reduction motor 5 drives the stirring shaft 6 to rotate, and the stirring shaft 6 drives the stirring frame 7 to rotate to stir the raw materials. After stirring for a period of time, the reduction motor 5 stops running; when sampling, the ball valve 18 is turned to open the sampling tube 16, and the slurry flows downward along the top of the sampling tube 16 and flows into the sampling tank 20. After collecting part of it, the ball valve 18 is turned to close the sampling tube 16, and the sampling tank 20 is replaced through the threaded joint 19. The clamp 17 is opened to release the position fixation of the sampling tube 16, and the upper and lower sampling tubes 16 are adjusted in their positions in the tank body 1, and sampling is performed again. After multiple samplings, the slurry concentration is tested to ensure the accuracy of the slurry value to avoid multiple cyclic additions of raw materials; the steam is introduced into the disc tube 9 through the inlet pipe 10 through the existing steam generator to heat and concentrate the slurry, and the remaining steam is discharged from the discharge pipe 11.

[0028] The standard parts used in the utility model can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, the specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0029] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A crystallization tank for preparing sodium metasilicate pentahydrate by mother liquor circulation method, comprising a tank body (1), characterized in that: The top of the tank body (1) is fixedly connected to a channel steel (2), the top of the channel steel (2) is fixedly connected to a seat ring (3), the top of the seat ring (3) is fixedly connected to a base (4), the top of the base (4) is fixedly connected to a reduction motor (5), the bottom of the output shaft of the reduction motor (5) is fixedly connected to a stirring shaft (6), the outer wall of the stirring shaft (6) is fixedly connected to a stirring frame (7), the inner wall of the tank body (1) is fixedly connected to an annular partition (8), the outer wall of the annular partition (8) is fixedly mounted with a disc tube (9), the tank body (1) and the annular partition (8) are fixedly connected to the same vertical sleeve (15), and a sampling mechanism is provided inside the tank body (1).

2. The crystallization tank for preparing sodium metasilicate pentahydrate by the mother liquor circulation method according to claim 1, characterized in that: The sampling mechanism comprises a sampling tube (16), the inner wall of the vertical sleeve (15) is slidably connected to the outer wall of the sampling tube (16), the outer wall of the sampling tube (16) is sleeved with a clamp (17), the outer wall of the clamp (17) is fixedly connected to the outer wall of the tank body (1), a ball valve (18) is fixedly installed on the outer wall of the sampling tube (16), the bottom of the sampling tube (16) is fixedly connected to a threaded joint (19), and the inner wall of the threaded joint (19) is threadedly connected to a sampling tank (20).

3. The crystallization tank for preparing sodium metasilicate pentahydrate by the mother liquor circulation method according to claim 1, characterized in that: One end of the coiled tube (9) is fixedly connected to an inlet tube (10), and the other end of the coiled tube (9) is fixedly connected to an outlet tube (11).

4. The crystallization tank for preparing sodium metasilicate pentahydrate by the mother liquor circulation method according to claim 3, characterized in that: The outer wall of the tank body (1) is provided with two mounting holes, and the inner walls of the two mounting holes are fixedly connected to the outer walls of the inlet pipe (10) and the outlet pipe (11).

5. The crystallization tank for preparing sodium metasilicate pentahydrate by mother liquor circulation method according to claim 1, characterized in that: An angle steel ring (12) is fixedly connected to the outer wall of the tank body (1), and two supporting legs (13) are fixedly connected between the tank body (1) and the channel steel (2).

6. The crystallization tank for preparing sodium metasilicate pentahydrate by mother liquor circulation method according to claim 1, characterized in that: A discharge pipe (14) is fixedly connected to the bottom of the tank body (1), and a valve is fixedly installed on the outer wall of the discharge pipe (14).

7. The crystallization tank for preparing sodium metasilicate pentahydrate by the mother liquor circulation method according to claim 2, characterized in that: The outer wall of the tank body (1) is provided with a sliding hole, and the inner wall of the sliding hole is slidably connected to the outer wall of the sampling tube (16).

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