Anti-caking device for baking soda production

Abstract

The utility model discloses an anti-caking device for baking soda production, which relates to the field of baking soda production and comprises a cooling hopper, a conveying mechanism and a cooling unit, a discharge pipe is arranged at the bottom of the cooling hopper, a sieve plate is obliquely mounted in the cooling hopper, and a coarse material port is arranged on one side wall of the cooling hopper corresponding to the lower end of the sieve plate. Cold air is blown out through the multiple air outlet heads and makes contact with powdery baking soda falling from the discharging pipe, on one hand, the temperature of the powdery baking soda can be reduced, the situation that the powdery baking soda is agglomerated after being packaged is avoided, on the other hand, the powdery baking soda is blown away through the cold air, and the powdery baking soda is scattered on the sieve plate; the accumulation of powdery baking soda on the sieve plate is reduced, the screening quality is improved, the screening efficiency is improved, cold air is blown out from the air outlet head, and the blocky baking soda can flow to the coarse material opening from the sieve plate.

Description

Technical Field

[0001] The utility model belongs to the field of baking soda production, and specifically relates to an anti-caking device for baking soda production. Background Art

[0002] The clumping of baking soda has always been a difficult technical problem to solve. The reasons for the clumping of baking soda include too fine crystal particle size, too high temperature during packaging after drying, and compaction of pallets after packaging. Among them, the too high temperature after drying and the failure to cool down in time and immediately package are the main reasons for the clumping.

[0003] The main reason for the caking of hot baking soda after drying is that the hot air accumulated in the packaging bag contains saturated water vapor in equilibrium with it, which causes the humidity in the packaging bag to increase as the temperature decreases. If the packaged baking soda is stacked and stored, the heat of the baking soda inside the stack will dissipate very slowly. If the temperature is high, some fine particles of baking soda will decompose and produce water molecules. These water molecules will remain between the baking soda crystal particles in the packaging bag and condense on the surface of the crystal particles as the temperature decreases, eventually causing caking. Therefore, the most fundamental solution to caking is to lower the temperature of the material before packaging.

[0004] There is a screening mechanism for screening the dried baking soda and filtering out the lumps to improve the quality of the finished powdered baking soda. Compared with the previous method of directly sending the baking soda into the packaging process after drying into powder, the application of this screening mechanism has a certain effect on reducing the lumps in the finished product, but it is only limited to filtering the lumps that have already been agglomerated, and cannot prevent subsequent agglomeration, and cannot fundamentally solve the problem of baking soda agglomeration.

[0005] Therefore, we propose a baking soda production anti-caking device to solve the above problems. Utility Model Content

[0006] In view of the existing screening mechanism, which is limited to filtering the already agglomerated materials but cannot prevent subsequent agglomeration, and cannot fundamentally solve the agglomeration problem of baking soda, the utility model provides an anti-agglomeration device for baking soda production.

[0007] The utility model solves the technical problem by adopting a solution: a baking soda production anti-caking device, comprising a cooling hopper, a conveying mechanism and a cooling unit, wherein a discharge pipe is arranged at the bottom of the cooling hopper.

[0008] A sieve plate is obliquely installed inside the cooling hopper, and a coarse material opening is provided at a position on one side wall of the cooling hopper corresponding to the lower end of the sieve plate;

[0009] The conveying mechanism includes a conveying cylinder, a driving motor and a rotating shaft. A feeding pipe and a discharging pipe are respectively installed at both ends of the conveying cylinder, and the bottom end of the discharging pipe is connected to the feeding port of the cooling hopper.

[0010] The rotating shaft is rotatably installed in the conveying cylinder, and N smooth spiral blades and M serrated spiral blades are mounted on the outer side thereof, and the serrated spiral blade is located between the two smooth spiral blades;

[0011] The driving motor is installed on the side of the conveying cylinder, and its output shaft is fixedly connected to the rotating shaft;

[0012] The cooling unit includes a cold air main pipe for connecting to the refrigeration system, on which at least one cold air branch pipe is installed. The inner end of the cold air branch pipe extends into the cooling hopper and is located above the screen plate and below the feed port. The cold air branch pipe is equipped with multiple air outlet heads for blowing away materials.

[0013] Preferably, four supporting legs are installed at the bottom of the cooling hopper.

[0014] Preferably, it also includes a recovery pipe and a collection box installed outside the coarse material opening, the bottom of the collection box is gradually inclined from front to back, one end of the recovery pipe is connected to the rear end of the collection box, and the other end is connected to the feed pipe, and the recovery pipe is inclined.

[0015] Preferably, a gas recovery pipe is installed on the top of the cooling hopper.

[0016] Preferably, a filter plate is installed at the bottom end of the gas recovery pipe.

[0017] Preferably, an outer sleeve is sleeved on the outer side of the conveying cylinder, a gap between the outer sleeve and the conveying cylinder is a cold air circulation chamber, and a cold air inlet and a cold air outlet are respectively installed at both ends of the outer sleeve.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model blows out cold air through multiple air outlet heads, and the cold air contacts the powdered baking soda falling from the feeding pipe. On the one hand, it can reduce the temperature of the powdered baking soda and avoid the agglomeration of the powdered baking soda after packaging. On the other hand, the cold air scatters the powdered baking soda, making it fall on the sieve plate and reducing the accumulation of the powdered baking soda on the sieve plate, which helps to improve the screening quality and screening efficiency. The cold air blown out by the air outlet head helps the block baking soda to flow from the sieve plate to the coarse material outlet.

[0020] 2. The utility model provides smooth spiral blades and serrated spiral blades, so that some lumps of baking soda are broken during the conveying process of baking soda, so as to facilitate the subsequent screening of the baking soda.

[0021] 3. The utility model provides a collecting box and a recycling pipe, so that the block baking soda that has not passed through the screen plate enters the conveying cylinder again through the recycling pipe and the feeding pipe, and the block baking soda is conveyed and crushed for the second time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model

[0024] In the figure: 1 cooling bucket, 11 supporting foot, 12 discharging pipe, 21 cold air main pipe, 22 cold air branch pipe, 23 air outlet head, 31 conveying cylinder, 32 feeding pipe, 33 unloading pipe, 34 driving motor, 35 serrated spiral sheet, 36 smooth spiral sheet, 37 rotating shaft, 4 recovery pipe, 5 collecting box, 61 outer sleeve, 62 cold air inlet, 63 cold air outlet, 7 gas recovery pipe, 71 filter plate, 8 sieve plate. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-2 The utility model provides a technical solution for a baking soda production anti-caking device:

[0027] Embodiment 1:

[0028] according to Figure 1 and Figure 2 As shown, it includes a cooling hopper 1, a conveying mechanism and a cooling unit. A discharge pipe 12 is provided at the bottom of the cooling hopper 1, and four supporting legs 11 are installed at the bottom of the cooling hopper 1.

[0029] A gas recovery pipe 7 is installed on the top of the cooling hopper 1, and a filter plate 71 is installed at the bottom of the gas recovery pipe 7. The filter plate 71 can reduce the dust content in the exhaust gas.

[0030] A sieve plate 8 is installed obliquely inside the cooling hopper 1, and a coarse material opening is opened at a position corresponding to the lower end of the sieve plate 8 on one side wall of the cooling hopper 1. The sieve plate 8 is arranged obliquely so that the block baking soda naturally flows to the coarse material opening under the action of gravity.

[0031] The conveying mechanism includes a conveying cylinder 31, a driving motor 34 and a rotating shaft 37. A feeding pipe 32 and a discharge pipe 33 are respectively installed at both ends of the conveying cylinder 31. The bottom end of the discharge pipe 33 is connected to the feed port of the cooling hopper 1, so that the baking soda in the conveying cylinder 31 enters the cooling hopper 1.

[0032] The rotating shaft 37 is rotatably installed in the conveying cylinder 31, and N smooth spiral blades 36 and M serrated spiral blades 35 are mounted on the outer side thereof. The serrated spiral blade 35 is located between two smooth spiral blades 36. By arranging the smooth spiral blades 36 and the serrated spiral blades 35, some lumpy baking soda is broken during the conveying process of baking soda, so as to facilitate the subsequent screening of the baking soda.

[0033] The driving motor 34 is installed on the side of the conveying cylinder 31 , and the output shaft of the driving motor 34 is fixedly connected to the rotating shaft 37 .

[0034] The cooling unit includes a cold air main pipe 21 for connecting to the refrigeration system, at least one cold air branch pipe 22 is installed on the cold air main pipe 21, the inner end of the cold air branch pipe 22 extends into the cooling hopper 1, and is located above the sieve plate 8 and below the feed port, and a plurality of air outlet heads 23 for blowing away materials are installed on the cold air branch pipe 22. Cold air is blown out through the plurality of air outlet heads 23, and the cold air contacts the powdered baking soda falling from the feed pipe 33. On the one hand, the temperature of the powdered baking soda can be reduced to avoid the agglomeration of the powdered baking soda after packaging. On the other hand, the cold air blows away the powdered baking soda, so that the powdered baking soda is dispersed and falls on the sieve plate 8, reducing the accumulation of the powdered baking soda on the sieve plate 8, which helps to improve the screening quality and screening efficiency. In addition, the cold air blows out by the air outlet head 23, which helps the block baking soda flow from the sieve plate 8 to the coarse material port.

[0035] It also includes a recovery pipe 4 and a collection box 5 installed on the outside of the coarse material opening. The bottom of the collection box 5 is gradually tilted from front to back. One end of the recovery pipe 4 is connected to the rear end of the collection box 5, and the other end is connected to the feed pipe 32. The recovery pipe 4 is tilted. By setting the collection box 5 and the recovery pipe 4, the lumps of baking soda that have not passed through the screen plate 8 can enter the conveying cylinder 31 again through the recovery pipe 4 and the feed pipe 32, and the lumps of baking soda can be transported and crushed for the second time.

[0036] When used specifically, the utility model is a baking soda production anti-caking device. First, the driving motor 34 is started, and the cold air generated by the refrigeration system is sent into the cold air main pipe 21. The driving motor 34 drives the rotating shaft 37, N smooth spiral blades 36 and M sawtooth spiral blades 35 to rotate. The N smooth spiral blades 36 and M sawtooth spiral blades 35 convey the baking soda during the rotation process, and at the same time, the blocky baking soda is broken;

[0037] As the baking soda moves in the conveying cylinder 31, the baking soda falls into the cooling hopper 1 through the discharge pipe 33, and the falling baking soda powder contacts the cold air blown out by the multiple air outlets 23. The cold air blows the baking soda powder away while lowering the temperature of the baking soda powder, so that the baking soda powder is scattered and falls on the sieve plate 8;

[0038] The powdered baking soda screened by the sieve plate 8 is discharged through the discharge pipe 12, and the block baking soda flows into the collecting box 5, and enters the conveying cylinder 31 again through the recovery pipe 4 and the feed pipe 32, and the block baking soda is transported and crushed for the second time.

[0039] Embodiment 2:

[0040] On the basis of the first embodiment, Figure 1 and Figure 2As shown, an outer sleeve 61 is mounted on the outer side of the conveying cylinder 31, and a gap between the outer sleeve 61 and the conveying cylinder 31 is a cold air circulation chamber. A cold air inlet 62 and a cooling outlet 63 are respectively installed at both ends of the outer sleeve 61. By connecting the cold air inlet 62 with the pipeline of the refrigeration system, cold air enters the cold air circulation chamber, and then the baking soda in the conveying process is pre-cooled.

Claims

1. A baking soda production anti-caking device, comprising a cooling hopper, a conveying mechanism and a cooling unit, wherein a discharge pipe is provided at the bottom of the cooling hopper, and characterized in that: A sieve plate is obliquely installed inside the cooling hopper, and a coarse material opening is provided at a position on one side wall of the cooling hopper corresponding to the lower end of the sieve plate; The conveying mechanism includes a conveying cylinder, a driving motor and a rotating shaft. A feeding pipe and a discharging pipe are respectively installed at both ends of the conveying cylinder, and the bottom end of the discharging pipe is connected to the feeding port of the cooling hopper. The rotating shaft is rotatably installed in the conveying cylinder, and N smooth spiral blades and M serrated spiral blades are mounted on the outer side thereof, and the serrated spiral blade is located between the two smooth spiral blades; The driving motor is installed on the side of the conveying cylinder, and its output shaft is fixedly connected to the rotating shaft; The cooling unit includes a cold air main pipe for connecting to the refrigeration system, on which at least one cold air branch pipe is installed. The inner end of the cold air branch pipe extends into the cooling hopper and is located above the screen plate and below the feed port. The cold air branch pipe is equipped with multiple air outlet heads for blowing away materials.

2. The anti-caking device for baking soda production according to claim 1, characterized in that: Four supporting legs are installed at the bottom of the cooling bucket.

3. The anti-caking device for baking soda production according to claim 1, characterized in that: It also includes a recovery pipe and a collection box installed outside the coarse material opening. The bottom of the collection box is gradually tilted from front to back. One end of the recovery pipe is connected to the rear end of the collection box, and the other end is connected to the feed pipe. The recovery pipe is tilted.

4. The anti-caking device for baking soda production according to claim 3, characterized in that: A gas recovery pipe is installed on the top of the cooling hopper.

5. The anti-caking device for baking soda production according to claim 4, characterized in that: A filter plate is installed at the bottom end of the gas recovery pipe.

6. The anti-caking device for baking soda production according to claim 1, characterized in that: An outer sleeve is sleeved on the outer side of the conveying cylinder, a gap between the outer sleeve and the conveying cylinder is a cold air circulation chamber, and a cold air inlet and a cold air outlet are respectively installed at both ends of the outer sleeve.

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