Preparation device of sodium carbonate

Abstract

The utility model discloses a sodium carbonate preparation device and relates to the related technical field of sodium carbonate production. The device comprises a material conveying sleeve, a feeding bin, a heat preservation sleeve and an air extracting pump, the heat preservation sleeve is fixed to the peripheral side of the material conveying sleeve, a feeding pipe is fixedly communicated with the upper portion of the peripheral side of the material conveying sleeve on the outer side of one end of the heat preservation sleeve, the top end of the feeding pipe is fixedly communicated with the feeding bin, and the top end of the feeding bin is fixedly communicated with material supplementing pipes in an annular array mode. An air pump is arranged on one side of the material conveying sleeve, and the end, away from the material conveying sleeve, of the adapter pipe is fixedly communicated with the input end of the air pump, and the end, away from the material conveying sleeve, of the adapter pipe is fixedly communicated with the input end of the air pump. Through the arrangement of the material conveying sleeve, the feeding bin, the heat preservation sleeve and the sucking pump, the problems that carbon dioxide is easily wasted in the production process of a combined alkali production method, and the working smoothness is not high enough are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of soda ash production, and in particular relates to a soda ash preparation device. Background Technology

[0002] The combined alkali production process is an improvement on the ammonia-soda process. Its principle is as follows: Brine purification: Similar to the ammonia-soda process, the raw salt is first purified into saturated brine. Ammonia absorption and carbonation: The brine first absorbs ammonia, then reacts with carbon dioxide to produce sodium bicarbonate and ammonium chloride. Separation and crystallization: By cooling and adding sodium chloride, ammonium chloride crystallizes out, yielding the ammonium chloride product. Mother liquor treatment: The remaining mother liquor contains uncrystallized ammonium chloride and sodium bicarbonate, which can be further subjected to ammonia absorption and carbonation for recycling. Soda ash production: The sodium bicarbonate precipitate is filtered and calcined to obtain the soda ash product. However, it still has the following drawbacks in practical use:

[0003] 1. In the process of producing soda ash by heating sodium bicarbonate to decompose it and produce soda ash, this is an important step. During the heating process, water vapor and carbon dioxide will be released. It is necessary to extract the carbon dioxide. However, when extracting, a negative pressure atmosphere will be generated inside, and the carbon dioxide cannot be completely extracted, resulting in waste of carbon dioxide.

[0004] 2. In the process of combined alkali production, the materials are directly piled up in the calcination equipment. After calcination, the equipment needs to be opened to take out the produced soda ash material. The overall work takes a long time and the overall smoothness of the work is not high. Utility Model Content

[0005] The purpose of this invention is to provide a device for preparing soda ash. By setting up a conveying sleeve, a feeding hopper, an insulation sleeve, and a vacuum pump, it solves the problems of carbon dioxide waste and insufficient smoothness in the combined soda ash production process.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a device for preparing soda ash, comprising a conveying sleeve, a feeding hopper, an insulating sleeve, and a vacuum pump. An insulating sleeve is fixedly attached to the periphery of the conveying sleeve. A feeding pipe is fixedly connected to the upper periphery of the conveying sleeve at one end of the insulating sleeve. The top of the feeding pipe is fixedly connected to the feeding hopper. A replenishment pipe is fixedly connected to the top of the feeding hopper in a circular array. A transfer pipe is fixedly connected to the upper periphery of the conveying sleeve at the end of the insulating sleeve away from the feeding hopper. A vacuum pump is installed on one side of the conveying sleeve. The end of the transfer pipe away from the conveying sleeve is fixedly connected to the input end of the vacuum pump. During operation, sodium bicarbonate is conveyed from the feeding hopper to the feeding pipe, and sodium bicarbonate is replenished to the feeding hopper through the replenishment pipe. The insulating sleeve keeps the conveying sleeve warm. After sodium bicarbonate is conveyed into the insulating sleeve, the vacuum pump extracts carbon dioxide from the conveying sleeve to prevent the generated carbon dioxide from escaping.

[0008] Furthermore, a drive motor is fixed on the end face of the conveying sleeve away from the transfer pipe, and a drive shaft is fixed on the output end of the drive motor. The drive shaft is movably connected to the end of the conveying sleeve, and a spiral blade is fixed on the periphery of the drive shaft inside the conveying sleeve. The conveying sleeve drives the drive shaft to rotate through the power generated by the drive motor, thereby causing the spiral blade to rotate.

[0009] Furthermore, a rotating motor is fixed at the center of the top of the feeding hopper, and a rotating shaft is fixed at the output end of the rotating motor. The rotating shaft is movably connected to the top of the feeding hopper, and a rotating frame is fixed at the bottom end of the rotating shaft. The feeding hopper drives the rotating shaft to rotate through the rotating motor and rotates through the rotating frame, so that the sodium bicarbonate in the feeding hopper is evenly transported into the feeding pipe.

[0010] Furthermore, the insulation sleeve has fixing holes at both ends, and the material conveying sleeve is fixedly inserted into the two fixing holes at both ends of the insulation sleeve. Several annular heaters that are in contact with each other are movably connected inside the material conveying sleeve. The annular heaters are all fixed on the periphery of the material conveying sleeve. The insulation sleeve is fixed in the material conveying sleeve through the fixing holes, and the annular heaters heat the insulation sleeve.

[0011] Furthermore, a discharge square tube is fixedly connected to the lower periphery of the conveying sleeve. The discharge square tube is located at the end of the conveying sleeve away from the drive motor. The conveying sleeve discharges sodium bicarbonate into processing equipment such as packaging through the discharge square tube.

[0012] Furthermore, a mounting plate is fixed to the periphery of the air pump, and a return pipe is fixedly connected to the output end of the air pump. The air pump is mounted on an external support structure through the mounting plate, and the extracted carbon dioxide gas is returned to the corresponding structure through the return pipe.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model solves the problem of carbon dioxide waste that easily occurs during the combined alkali production process by setting up a conveying sleeve and a vacuum pump. When sodium bicarbonate enters the conveying sleeve, it is heated by an annular heater in the insulation sleeve. As the spiral blades rotate, the material contacts the inner wall of the conveying sleeve. After being heated, the sodium bicarbonate decomposes, producing sodium carbonate, water, and carbon dioxide gas. At the same time, the water evaporates, and the vacuum pump is then started. The vacuum pump fully extracts the carbon dioxide and water vapor from the conveying sleeve through the transfer pipe, and greatly reduces the carbon dioxide gas escaping from the discharge square pipe, preventing the carbon dioxide concentration in the environment from being too high. At the same time, it recovers as much carbon dioxide as possible during production, reduces carbon dioxide waste, and lowers production costs.

[0015] 2. This utility model solves the problem of insufficient smoothness in the combined alkali production process by setting up a conveying sleeve, a feeding hopper, and an insulation sleeve. The sodium bicarbonate material to be produced is conveyed to the feeding hopper through the feeding pipe, and then the rotating motor is started. The rotating motor drives the rotating shaft to rotate, and the rotating shaft drives the rotating frame to rotate. The rotating frame agitates and conveys the material in the feeding hopper to the conveying sleeve. The drive motor drives the drive shaft to rotate, which drives the spiral blades to rotate. Then the annular heater on the periphery of the conveying sleeve is started. When the annular heater is working, it heats the conveying sleeve. After the sodium bicarbonate material enters the conveying sleeve, it is conveyed to the discharge square pipe as the spiral blades rotate, resulting in a smoother operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a soda ash preparation device;

[0018] Figure 2 A three-dimensional cross-sectional view of the material conveyor sleeve.

[0019] Figure 3 A 3D cross-sectional view of the feed hopper section;

[0020] Figure 4 A three-dimensional cross-sectional view of the insulation jacket section;

[0021] Figure 5 This is a 3D diagram of the air pump structure.

[0022] Figure label:

[0023] 1. Feeding sleeve; 101. Drive motor; 102. Feed pipe; 103. Drive shaft; 104. Spiral blade; 105. Discharge square tube; 2. Feeding bin; 201. Rotating motor; 202. Rotating shaft; 203. Rotating frame; 204. Feeding pipe; 3. Insulation sleeve; 301. Fixing hole; 302. Ring heater; 4. Air pump; 401. Mounting plate; 402. Transfer pipe; 403. Return pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0026] Please see Figure 1-5 This utility model relates to a device for preparing soda ash, comprising a conveying sleeve 1, a feeding hopper 2, an insulating sleeve 3, and a vacuum pump 4. The insulating sleeve 3 is fixed to the periphery of the conveying sleeve 1. During operation, the conveying sleeve 1 transports sodium bicarbonate, which undergoes heating and decomposition, through it. The insulating sleeve 3 keeps the heating ring warm. A feed pipe 102 is fixedly connected to the upper periphery of the conveying sleeve 1 on one side of the insulating sleeve 3, connecting the insulating sleeve 3 and the feeding hopper 2. The top of the feed pipe 102 is fixedly connected to the feeding hopper 2, which temporarily stores some solid sodium bicarbonate. The top of the feeding hopper 2 is annular. The array is fixedly connected to a feeding pipe 204. The top end of the feeding pipe 204 is connected to a pipeline for conveying sodium bicarbonate material. The feeding pipe 204 replenishes the sodium bicarbonate material into the feed hopper 2. The upper part of the outer side of the conveying sleeve 1 on the outside of the insulation sleeve 3 away from the feed hopper 2 is fixedly connected to a transfer pipe 402. The conveying sleeve 1 is connected to the vacuum pump 4 through the transfer pipe 402. The vacuum pump 4 is installed on one side of the conveying sleeve 1. The end of the transfer pipe 402 away from the conveying sleeve 1 is fixedly connected to the input end of the vacuum pump 4. The vacuum pump 4 draws in the mixed gas generated in the conveying sleeve 1 and discharges it into the equipment in use.

[0027] Specifically, a drive motor 101 is fixed on the end face of the conveying sleeve 1 away from the transfer pipe 402. A drive shaft 103 is fixed on the output end of the drive motor 101. The drive shaft 103 is movably connected to the end of the conveying sleeve 1. A spiral blade 104 is fixed around the drive shaft 103 inside the conveying sleeve 1. When the conveying sleeve 1 is working, the drive shaft 103 is driven to rotate by the drive motor 101, which drives the spiral blade 104 to rotate and convey sodium bicarbonate material into the conveying sleeve 1.

[0028] Furthermore, a rotating motor 201 is fixed at the center of the top of the feeding bin 2, and a rotating shaft 202 is fixed at the output end of the rotating motor 201. The rotating shaft 202 is movably connected to the top of the feeding bin 2, and a rotating frame 203 is fixed at the bottom end of the rotating shaft 202. The feeding bin 2 rotates by rotating the rotating motor 201, which drives the rotating shaft 202 to rotate. The rotation of the rotating shaft 202 drives the rotating frame 203 to rotate, so that the material in the feeding bin 2 enters the conveying sleeve 1 at a uniform speed.

[0029] Furthermore, both ends of the insulation sleeve 3 are provided with fixing holes 301. The conveying sleeve 1 is fixedly inserted into the two fixing holes 301 at both ends of the insulation sleeve 3. Several annular heaters 302 are movably connected inside the conveying sleeve 1 and are in contact with each other. The annular heaters 302 are all fixed on the periphery of the conveying sleeve 1. When the insulation sleeve 3 is working, the conveying sleeve 1 is fixed through the fixing holes 301 and the plastic sleeve is heated by the annular heaters 302, so that the sodium bicarbonate material passing through the conveying sleeve 1 is decomposed.

[0030] The operation process of this embodiment is as follows: During operation, the sodium bicarbonate material to be produced is first transported to the feed hopper 2 through the feeding pipe 204. Then, the rotating motor 201 is started, and the rotating motor 201 drives the rotating shaft 202 to rotate. Through the rotation of the rotating shaft 202, the rotating frame 203 is driven to rotate. Through the rotation of the rotating frame 203, the material in the feed hopper 2 is stirred and transported to the conveying sleeve 1. The drive motor 101 drives the drive shaft 103 to rotate, which drives the spiral blade 104 to rotate. Then, the annular heater 302 on the periphery of the conveying sleeve 1 is started. When the annular heater 302 is working, it heats the conveying sleeve 1. After entering the conveying sleeve 1, the sodium bicarbonate material is transported to the discharge square pipe 105 as the spiral blade 104 rotates. Specific Implementation Example 2

[0032] Please see Figure 1 , 2 5. Based on the specific embodiment 1, a discharge square pipe 105 is fixedly connected to the lower periphery of the conveying sleeve 1. The discharge square pipe 105 is located at the end of the conveying sleeve 1 away from the drive motor 101. When the conveying sleeve 1 is working, the sodium bicarbonate produced therein is discharged through the discharge square pipe 105.

[0033] Specifically, a mounting plate 401 is fixed around the vacuum pump 4, and a return pipe 403 is fixedly connected to the output end of the vacuum pump 4. The end of the return pipe 403 away from the vacuum pump 4 is connected to the equipment in the carbon dioxide step of soda ash production. The vacuum pump 4 is mounted on an external mounting structure through the mounting plate 401, and when the vacuum pump 4 is working, the gas extracted from the feed sleeve 1 after reaction is transported to the step in soda ash production that requires the use of carbon dioxide through the return pipe 403.

[0034] The operation process of this embodiment is as follows: During operation, when sodium bicarbonate enters the conveying sleeve 1, the conveying sleeve 1 is heated by the annular heater 302 in the insulation sleeve 3. As the spiral blade 104 rotates, the material contacts the inner wall of the conveying sleeve 1. After being heated, the sodium bicarbonate decomposes, producing sodium carbonate, water, and carbon dioxide gas. At the same time, the water evaporates, and then the vacuum pump 4 is started. The vacuum pump 4 fully extracts the carbon dioxide and water vapor from the conveying sleeve 1 through the transfer pipe 402, and greatly reduces the carbon dioxide gas escaping from the discharge square pipe 105, preventing the carbon dioxide concentration in the environment from being too high. At the same time, it recovers as much carbon dioxide as possible during production, reducing production costs.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for preparing soda ash, comprising a conveying sleeve (1), a feeding hopper (2), an insulation sleeve (3), and a vacuum pump (4), characterized in that: A heat insulation sleeve (3) is fixed around the periphery of the feeding sleeve (1). A feed pipe (102) is fixedly connected to the upper part of the periphery of the feeding sleeve (1) on the outer side of one end of the heat insulation sleeve (3). A feed hopper (2) is fixedly connected to the top of the feed pipe (102). A replenishment pipe (204) is fixedly connected to the top of the feed hopper (2) in a ring array. A transfer pipe (402) is fixedly connected to the upper part of the periphery of the feeding sleeve (1) on the outer side of the heat insulation sleeve (3) away from the feed hopper (2). An air pump (4) is provided on one side of the feeding sleeve (1). The end of the transfer pipe (402) away from the feeding sleeve (1) is fixedly connected to the input end of the air pump (4).

2. The apparatus for preparing soda ash according to claim 1, characterized in that: A drive motor (101) is fixed on the end face of the conveying sleeve (1) away from the adapter pipe (402). A drive shaft (103) is fixed on the output end of the drive motor (101). The drive shaft (103) is movably connected to the end of the conveying sleeve (1). A spiral blade (104) is fixed around the drive shaft (103) inside the conveying sleeve (1).

3. The apparatus for preparing soda ash according to claim 1, characterized in that: A rotating motor (201) is fixed at the top center of the feed hopper (2). A rotating shaft (202) is fixed at the output end of the rotating motor (201). The rotating shaft (202) is movably connected to the top of the feed hopper (2). A rotating frame (203) is fixed at the bottom end of the rotating shaft (202).

4. The apparatus for preparing soda ash according to claim 1, characterized in that: The insulation sleeve (3) has fixing holes (301) at both ends. The material conveying sleeve (1) is fixed in the two fixing holes (301) at both ends of the insulation sleeve (3). Several annular heaters (302) are movably connected inside the material conveying sleeve (1). The annular heaters (302) are all fixed on the periphery of the material conveying sleeve (1).

5. The apparatus for preparing soda ash according to claim 2, characterized in that: The lower periphery of the feeding sleeve (1) is fixedly connected to a discharge square tube (105), which is located at the end of the feeding sleeve (1) away from the drive motor (101).

6. The apparatus for preparing soda ash according to claim 1, characterized in that: The air pump (4) is fixed with a mounting plate (401) on its periphery, and the output end of the air pump (4) is fixedly connected to a return pipe (403).

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