Anti-caking device for baking soda

Abstract

The utility model provides a baking soda anti-caking device. The baking soda anti-caking device comprises a dryer, a crusher and a powder flow cooler which are sequentially connected through a conveying belt, the dryer is of a double-wall structure, a heat exchange plate in the powder flow cooler is connected with the hot water type lithium bromide unit through a pipeline, and the hot water type lithium bromide unit is connected with a steam condensate water pipeline through a pipeline. Non-contact drying of baking soda is achieved through the double-wall structure of the dryer, and secondary pollution of baking soda caused by dry gas is avoided; the pulverizer is arranged between the dryer and the powder flow, so that the cooling effect is greatly improved, the caking condition is avoided, and the internal temperature of baking soda is convenient to control; by using the baking soda powder flow cooler, the baking soda product is gradually cooled by a two-stage or more than two-stage circulating cooling method, so that scabbing in the cooling equipment can be prevented, and the product temperature can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of baking soda drying and cooling, and in particular relates to a baking soda anti-caking device. Background Art

[0002] The characteristic of baking soda products is that they will decompose at 60 degrees, and the decomposition will produce water and carbon dioxide, which will cause the baking soda to clump during storage. Especially in summer, during storage and transportation, due to the dual effects of high temperature outside and high temperature of the product, in serious cases, it will clump after one day of storage. Especially in ton bags, because the internal heat cannot be dissipated, it is more likely to clump. Serious product caking has a great impact on sales and customer use.

[0003] Publication No. CN213208733U discloses a cooling system for baking soda production, including a first powder flow heat exchanger, the discharge port of the first powder flow heat exchanger is connected to a buffer bin through a screw conveyor, the discharge port of the buffer bin is connected to a first sending tank, the discharge port of the first sending tank is connected to a transfer bin, the discharge port of the transfer bin is connected to a second sending tank, the discharge port of the second sending tank is connected to an exhaust bin, and the discharge port of the exhaust bin is connected to a second powder flow heat exchanger. The cooling system has a good cooling effect and can effectively solve the problem of baking soda product agglomeration during summer production. However, the drying effect of this solution is poor and the safety is insufficient.

[0004] The solution provided in this application further improves the baking soda drying and cooling efficiency and safety. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a baking soda anti-caking device in view of the deficiencies in the prior art, aiming at improving the baking soda drying and cooling efficiency and preventing the baking soda from agglomerating.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] The baking soda anti-caking device comprises a dryer, a pulverizer and a powder flow cooler which are sequentially connected through a conveyor belt; the dryer is arranged as a double-wall structure, the heat exchange plate in the powder flow cooler is connected to a hot water type lithium bromide unit through a pipeline, and the hot water type lithium bromide unit is connected to a steam condensate water pipeline through a pipeline.

[0008] Preferably, the dryer is provided with an air inlet and an air outlet, respectively, and the air inlet and the air outlet are respectively connected to the double-wall structure of the dryer.

[0009] Preferably, the pulverizer is a cyclone screen structure, and the pulverizer is connected to the dryer and the powder flow cooler respectively through a first conveyor belt and a second conveyor belt.

[0010] Preferably, the first conveyor belt and the second conveyor belt are both configured as spiral feeding structures.

[0011] Preferably, a plurality of connected heat exchange plates are provided in the powder flow cooler, and the number of the powder flow cooler may be multiple.

[0012] Preferably, an exhaust port is provided at the top of the powder flow cooler.

[0013] Preferably, a vibrating discharge port is provided at the lower portion of the powder flow cooler.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model replaces the traditional device for lowering the product temperature by circulating water and uses low-temperature cold water for cooling, so that the product temperature can be easily controlled.

[0016] The double-wall structure of the dryer realizes contactless drying of baking soda, avoiding secondary contamination of baking soda by drying gas; by setting a pulverizer between the dryer and the powder flow, the cooling effect is greatly improved, avoiding the occurrence of caking, and facilitating the control of the temperature inside the baking soda; by using a baking soda powder flow cooler, the temperature of the baking soda product is gradually cooled through a two-stage or more cyclic cooling method, which can prevent caking in the cooling equipment and reduce the product temperature.

[0017] In the process of using the powder flow cooler, the existing baking soda production device is effectively utilized, with 30 tons / hour of steam condensate at a temperature of 110 degrees. This hot water is sent to the raw water barrel of the power plant to make soft water, and the heat is lost in vain. Through the effective treatment of the hot water type lithium bromide unit, energy consumption is greatly saved, and the steam condensate is well utilized. At the same time, the baking soda can be continuously cooled to further ensure its temperature and avoid agglomeration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0021] Among them, 1. dryer; 11. double wall; 12. feed port; 13. air inlet; 14. air outlet; 15. discharge port; 2. crusher; 3. first powder flow cooler; 31. first exhaust port; 32. first heat exchange plate; 33. first vibration discharge port; 4. hot water type lithium bromide unit; 41. pipeline; 5. first conveyor belt; 6. second conveyor belt; 7. third conveyor belt; 8. second powder flow cooler; 81. second exhaust port; 82. second heat exchange plate; 83. second vibration discharge port. DETAILED DESCRIPTION

[0022] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0023] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0024] Example 1

[0025] Provided is a baking soda anti-caking device, specifically as follows Figure 1 As shown, it includes a dryer 1, a crusher 2 and a first powder flow cooler 3 which are connected in sequence through a conveyor belt; the dryer 1 is configured as a double-wall 11 structure, the first heat exchange plate 32 in the first powder flow cooler 3 is connected to a hot water type lithium bromide unit 4 through a pipeline 41, and the hot water type lithium bromide unit 4 is connected to a steam condensate water pipeline through a pipeline 41.

[0026] Furthermore, the dryer 1 is respectively provided with an air inlet 12 and an air outlet 13, and the air inlet 12 and the air outlet 13 are respectively connected to the cavity between the double walls 11 of the dryer 1. Dry gas can enter the interior of the double wall 11 through the air inlet 12 to heat the internal space of the dryer 1, thereby drying the baking soda, greatly improving the drying efficiency and safety.

[0027] Furthermore, the crusher 2 is a cyclone screen structure, and a rotating shaft is provided in the cylindrical screen. The rotating shaft is connected with blades that can generate wind pressure to blow the material outward and break the lumps and produce a spiral conveying effect. The blades are radiated outward at equal angles on the rotating shaft, and one of the blades is serrated so that the place that blocks the screen can be blown off by mortar method, so that the screen will not be blind.

[0028] The dried baking soda is first crushed and sieved by a cyclone screen, and then cooled and packaged by a powder flow cooler, eliminating the caking phenomenon of the finished baking soda; the cyclone screen is selected, which can crush the lumps formed in the drying process while screening, and compared with the vibrating screen with high noise, its working environment is beneficial to the health of the operators; the specially designed powder flow cooler has the advantages of simple structure, high heat exchange efficiency, low operating energy consumption, no damage to crystal particles, no emission pollution, low operating and maintenance costs, and small footprint; the baking soda products produced are of high quality, not polluted, and fully meet food grade requirements.

[0029] The pulverizer 2 is connected to the dryer 1 and the first powder flow cooler 3 respectively through a first conveyor belt 5 and a second conveyor belt 6. The first conveyor belt 5 and the second conveyor belt 6 are both configured as spiral feeding structures, which can increase friction and prevent baking soda from slipping during transportation.

[0030] Furthermore, the first powder flow cooler 3 is provided with a plurality of connected first heat exchange plates 32, and the first powder flow cooler 3 is also provided with a first exhaust port 31 for discharging evaporated gas, and a first vibration discharge port 33 is also provided at the lower part. The micro-vibration generated by the two counter-rotating vibration motors realizes uniform discharge, which is discharged to the packaging silo and packaged into finished baking soda. In addition, the discharge speed of the first vibration discharge port 33 is effectively controlled to ensure that the cooling box is full of material; the first exhaust port 31 maintains a slight negative pressure, generally controlled at about -1.32kPa to -2.0kPa, to ensure that moisture is discharged in time, and has both dehumidification and cooling functions.

[0031] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0032] The utility model replaces the traditional device for lowering the product temperature by circulating water and uses low-temperature cold water for cooling, so that the product temperature can be easily controlled.

[0033] The double-wall structure of the dryer realizes contactless drying of baking soda, avoiding secondary contamination of baking soda by drying gas; by setting a crusher between the dryer and the powder flow, the cooling effect is greatly improved, avoiding the occurrence of caking, and facilitating the control of the temperature inside the baking soda; by using a baking soda powder flow cooler, the temperature of the baking soda product is cooled by a circulating cooling method, which can prevent caking in the cooling equipment and reduce the product temperature.

[0034] In the process of using the powder flow cooler, the existing baking soda production device is effectively utilized, with 30 tons / hour of steam condensate at a temperature of 110 degrees. This hot water is sent to the raw water barrel of the power plant to make soft water, and the heat is lost in vain. Through the effective treatment of the hot water type lithium bromide unit, energy consumption is greatly saved, and the steam condensate is well utilized. At the same time, the baking soda can be continuously cooled to further ensure its temperature and avoid agglomeration.

[0035] Example 2

[0036] The difference between this embodiment and embodiment 1 is that a second powder flow cooler 8 is superimposed on the rear of the first powder flow cooler 3, and the second powder flow cooler 8 is also provided with a second exhaust port 81, a second heat exchange plate 82 and a second vibration discharge port; by using the baking soda powder flow cooler, the temperature of the baking soda product is gradually cooled by a two-stage or more cyclic cooling method, which can prevent scarring in the cooling equipment and reduce the product temperature.

[0037] This cold water is used to cool the product, and can reduce the temperature of the product before packaging to about 25-30 degrees (20 degrees lower than the current level). In summer, it can reduce product agglomeration, extend storage time, increase market competitiveness, and facilitate market development and sales. After the on-site steam condensate is reused, the temperature is reduced from 110 degrees to 70 degrees before being sent to the power plant, which is conducive to boiler water replenishment and reuse.

[0038] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the utility model can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the preferred implementation scheme of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical scheme of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical scheme of the utility model.

Claims

1. The baking soda anti-caking device is characterized by: It includes a dryer, a pulverizer and a powder flow cooler which are connected in sequence through a conveyor belt; the dryer is arranged as a double-wall structure, a heat exchange plate is arranged in the powder flow cooler, the heat exchange plate is connected to a hot water type lithium bromide unit through a pipeline, and the hot water type lithium bromide unit is connected to a steam condensate water pipeline through a pipeline.

2. The baking soda anti-caking device according to claim 1, characterized in that: The dryer is provided with an air inlet and an air outlet, respectively, and the air inlet and the air outlet are respectively connected to the cavity between the double walls of the dryer.

3. The baking soda anti-caking device according to claim 1, characterized in that: The pulverizer is a cyclone screen structure, and the pulverizer is connected to the dryer and the powder flow cooler respectively through a first conveyor belt and a second conveyor belt.

4. The baking soda anti-caking device according to claim 3, characterized in that: The first conveyor belt and the second conveyor belt are both configured as spiral feeding structures.

5. The baking soda anti-caking device according to claim 1, characterized in that: A plurality of connected heat exchange plates are arranged in the powder flow cooler, and the powder flow cooler can be arranged in plurality.

6. The baking soda anti-caking device according to claim 5, characterized in that: An exhaust port is arranged on the upper portion of the powder flow cooler.

7. The baking soda anti-caking device according to claim 5, characterized in that: A vibrating discharge port is arranged at the lower part of the powder flow cooler.

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