Drying and screening device for adsorbent particles

Abstract

The utility model relates to the technical field of screening devices, in particular to a drying and screening device for adsorbent particles, an equipment main body comprises a screening barrel, a drying part and a screening part, the drying part comprises a first side wall heating piece and a negative pressure substance removal channel, and the screening part comprises a screening net rack and a screening discharging channel; the barrel cover is arranged at the bottom of the screening barrel body, the barrel cover comprises a feeding opening, a motor mounting opening and a negative pressure connecting opening, a stirring motor is connected to the motor mounting opening, the stirring motor is connected with a stirring shaft, stirring blades are arranged at the bottom of the stirring shaft, and the stirring blades are arranged close to the screening net frame; the vertical vibration motor is arranged at the bottom of the screening barrel, and eccentric heavy hammers are arranged at the upper end and the lower end of the vertical vibration motor. The drying and screening functions are achieved on the same equipment, and meanwhile low-density impurities and light powder generated by drying are removed on the upper portion of the device through negative pressure suction.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, specifically to a drying and screening device for adsorbent particles. Background Technology

[0002] Drying is a crucial step in adsorbent production, primarily used to remove moisture from the raw materials to ensure the quality and performance of the final product. The drying process is essential in adsorbent production; dried adsorbents have a better pore structure and a larger specific surface area, thus improving their adsorption capacity. Simultaneously, drying removes moisture from the particles, effectively preventing particle deterioration. Furthermore, the sieving process itself requires separating particles of different sizes using sieves. If the material is damp, it will affect the filtration efficiency of the sieves, leading to inaccurate sieving results. Therefore, we need an integrated device that combines drying and sieving.

[0003] Patent application CN202221723967.9 discloses a screening device, including a screening device body with an inlet at the top and an outlet at the bottom. The screening device body contains a screen disc and a cleaning mechanism. When the screening device body is shaken, the screen disc screens the material falling onto it. The cleaning mechanism is located below the screen disc and includes: a first lead screw, which passes through the screening device body via a first bearing; and a brush assembly, which forms a lead screw pair structure with the first lead screw. When the first lead screw is rotated, the brush assembly removes the remaining material below the screen disc through the outlet from the screening device body. This screening device can effectively improve the efficiency of material screening.

[0004] However, traditional screening only separates particles by physical particle size, and does not have an organic drying step, so it cannot effectively remove low-density impurities and light dust. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a drying and sieving device for adsorbent particles, which has drying and sieving functions on the same device, and removes low-density impurities and light powder generated during drying by negative pressure attraction at the top of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A drying and sieving device for adsorbent particles includes a main body, the main body comprising:

[0008] The screening cylinder includes a drying section and a screening section. The drying section includes a first sidewall heating element and a negative pressure descaling channel. The screening section includes a screening screen frame and a screening discharge channel.

[0009] A barrel cover is provided at the bottom of the screening cylinder. The barrel cover includes a feed inlet, a motor mounting port, and a negative pressure connection port. A stirring motor is connected to the motor mounting port. The stirring motor is connected to a stirring shaft. Stirring blades are provided at the bottom of the stirring shaft. The stirring blades are located close to the screening screen frame.

[0010] A vertical vibrating motor is installed at the bottom of the screening cylinder, and eccentric weights are provided at both the upper and lower ends of the vertical vibrating motor.

[0011] As a preferred embodiment of the present invention, the negative pressure desizing channel is located on the upper part of the screening frame, and the screening cylinder is provided with a desizing port corresponding to the negative pressure desizing channel, and the desizing port is connected to the negative pressure desizing channel.

[0012] As a preferred embodiment of the present invention, the negative pressure descaling channel is provided with a venturi tube, and the end of the negative pressure descaling channel is connected to a dust collection bag and a variable frequency fan.

[0013] As a preferred embodiment of the present invention, the inlet section of the Venturi tube is connected to the descaling port, and the drying section is provided with a second sidewall heating element around the descaling port, wherein the heating temperature of the second sidewall heating element is higher than that of the first sidewall heating element.

[0014] The sidewall of the drying section has a double-layer wall structure, and the first sidewall heating element and the second sidewall heating element are both located in the inner cavity of the sidewall of the drying section.

[0015] As a preferred embodiment of the present invention, the screening frame is made of metal, and the bottom of the screening frame is connected to the heating element.

[0016] As a preferred embodiment of the present invention, the screening frame is provided with screening holes, and the distance between the bottom of the stirring blade and the screening frame is 1 / 3 to 1 / 2 of the diameter of the screening holes.

[0017] As a preferred embodiment of the present invention, the stirring blade is obliquely arranged, and the lowest point of the end of the stirring blade facing the inner wall of the drying section is lower than the lowest point of the end of the stirring blade connected to the stirring shaft.

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

[0019] By optimizing the screening cylinder, a drying section and a screening section are simultaneously set up in the screening cylinder. The desiccant particles are dried in the drying section and then dried and screened in the screening section below.

[0020] An external fan is connected to a negative pressure connection port on the lid. Air is drawn out through the negative pressure connection port, and the low-density impurities and light powder generated by the dried desiccant particles are attracted upward by the negative pressure. The low-density impurities and light powder are separated from the desiccant particles, and then discharged through the negative pressure desiccant removal channel.

[0021] The first and second sidewall heating elements are set up. When the heating temperature of the second sidewall heating element is higher than that of the first sidewall heating element, the temperature around the descaling port is higher than that of the entire drying section, forming a local high temperature and low pressure zone. This makes it easier for low-density impurities and light powders that have been attracted and risen by the negative pressure to flow toward the descaling port and be more easily attracted by the negative pressure of the descaling port and discharged from the negative pressure descaling channel. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0024] Figure 2 This is a top view of the present invention.

[0025] Figure 3 for Figure 2 Cross-sectional view at point AA.

[0026] Figure 4 This is a schematic cross-sectional view of the drying section at the negative pressure descaling channel in this utility model. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] A drying and sieving device for adsorbent particles, comprising a main body, the main body including:

[0030] The screening cylinder 1 includes a drying section 2 and a screening section 3. The drying section 2 includes a first side wall heating element 4 and a negative pressure desizing channel 5. The screening section 3 includes a screening screen frame 6 and a screening discharge channel 7.

[0031] The barrel cover 8 is located at the bottom of the screening cylinder 1. The barrel cover 8 includes a feed inlet 9, a motor mounting port and a negative pressure connection port 10. The motor mounting port is connected to a stirring motor 11. The stirring motor 11 is connected to a stirring shaft 12. The bottom of the stirring shaft 12 is provided with stirring blades 13. The stirring blades 13 are located close to the screening frame 6.

[0032] A vertical vibrating motor 14 is installed at the bottom of the screening cylinder 1. Eccentric weights are provided at both the upper and lower ends of the vertical vibrating motor 14. The eccentric weights are not shown in the figure, but can be selected and installed according to the required vibration requirements.

[0033] The negative pressure desizing channel 5 is located on the upper part of the screening frame 6, and the screening cylinder 1 is provided with a desizing port 15 corresponding to the negative pressure desizing channel 5. The desizing port 15 is connected to the negative pressure desizing channel 5.

[0034] The negative pressure descaling channel 5 is equipped with a venturi tube 16. The end outlet of the negative pressure descaling channel 5 is connected to the inlet of the dust collection bag. The outlet of the dust collection bag is connected to the variable frequency fan. The dust collection bag and the variable frequency fan are not shown in the figure. When working, the variable frequency fan works to form a negative pressure in the negative pressure descaling channel 5, which draws low-density impurities and light powder from the drying section 2 into the dust collection bag.

[0035] The inlet section of the Venturi tube 16 is connected to the descaling port 15. The inlet section of the Venturi tube 16 must be connected to the descaling port 15, i.e., to the inner cavity of the device. This is essentially to utilize the acceleration effect of the contraction section and the low-pressure characteristics of the throat to form a stable adsorption force field within the inner cavity. Reverse connection would lead to energy waste, negative pressure failure, and secondary pollution, significantly reducing equipment efficiency. Airflow is drawn into the inlet section of the Venturi tube 16 from the inner cavity, forming a high-speed, low-pressure region in the throat. This low pressure in the throat is transmitted to the inner cavity of the drying section 2 through the connection of the inlet section (analogous to the principle of a "suction pump"), achieving continuous adsorption of light particles.

[0036] The drying section 2 is equipped with a second sidewall heating element 17 around the descaling port 15. The heating temperature of the second sidewall heating element 17 is higher than that of the first sidewall heating element 4. The hot air section is at low pressure. Due to its higher temperature, the hot air expands in volume after being heated, its density decreases, and its weight becomes lighter, so it flows upward to form a low-pressure area. Conversely, the cold air has a higher density and sinks to form a high-pressure area. This pressure difference is caused by the rising of hot air and the sinking of cold air. By setting the heating temperature of the second sidewall heating element 17 to be higher than that of the first sidewall heating element 4, the temperature around the descaling port 15 is made higher than the temperature of the entire drying section 2, forming a local high-temperature low-pressure area. This makes it easier for the low-density impurities and light powders that have been attracted upward by the negative pressure to flow toward the descaling port 15 and be more easily attracted by the negative pressure of the descaling port 15 and discharged from the negative pressure descaling channel 5.

[0037] The sidewall of the drying section 2 has a double-wall structure, and the first sidewall heating element 4 and the second sidewall heating element 17 are both located in the inner cavity of the sidewall of the drying section 2.

[0038] The screening frame 6 is made of metal. The bottom of the screening frame 6 is connected to the heating element 18. After the heating element 18 heats up, the screening frame 6 heats up to the required temperature to heat and dry the desiccant particles. The first side wall heating element 4, the second side wall heating element 17, and the heating element 18 can be electric heating rods.

[0039] The sieve frame 6 is provided with sieve holes. The distance between the bottom of the stirring blade 13 and the sieve frame 6 is 1 / 3 to 1 / 2 of the diameter of the sieve hole. Only when the distance is less than 1 / 2 of the hole diameter can the stirring blade 13 effectively stir and turn the desiccant particles at the bottom. If the distance is too far, it cannot be reached and cannot be turned. However, if the distance is too close, the stirring blade 13 and the sieve frame 6 will rub against each other and cause mutual wear.

[0040] Furthermore, the stirring blade 13 is angled, and the lowest point of the end of the stirring blade 13 facing the inner wall of the drying section is lower than the lowest point of the end of the stirring blade 13 connected to the stirring shaft 12.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A drying and sieving apparatus for adsorbent granules, comprising an apparatus body, characterised in that, The device body comprises: A screening barrel body comprising a drying part and a screening part, the drying part comprising a first sidewall heating element and a negative pressure material removal channel, and the screening part comprising a screening mesh rack and a screening discharge channel; A barrel cover provided at the bottom of the screening barrel body, the barrel cover comprising a feed inlet, a motor mounting port, and a negative pressure connection port, the motor mounting port being connected with a stirring motor, the stirring motor being connected with a stirring shaft, the stirring shaft being provided at the bottom with stirring blades, and the stirring blades being arranged close to the screening mesh rack; A vertical vibration motor provided at the bottom of the screening barrel body, the vertical vibration motor being provided at the upper and lower ends with eccentric weights.

2. The drying and sizing apparatus for adsorbent granules according to claim 1, characterized by, The negative pressure material removal channel is provided at the upper part of the screening mesh rack, and the screening barrel body is provided at the corresponding position of the negative pressure material removal channel with a material removal port, which is connected with the negative pressure material removal channel.

3. The drying and sizing apparatus for adsorbent granules according to claim 2, characterized by, A Venturi tube is arranged in the negative pressure material removal channel, and the end of the negative pressure material removal channel is connected with a dust collection bag and a variable frequency fan.

4. The drying and sizing apparatus for adsorbent granules according to claim 3, characterized by, The inlet section of the Venturi tube is connected with the material removal port, the drying part is provided around the material removal port with a second sidewall heating element, and the heating temperature of the second sidewall heating element is higher than that of the first sidewall heating element. The sidewall of the drying part is a double-wall structure, and the first sidewall heating element and the second sidewall heating element are arranged in the inner cavity of the sidewall of the drying part.

5. The drying and sizing apparatus for adsorbent granules according to claim 4, characterized by, The screening mesh rack is made of metal material, and the bottom of the screening mesh rack is connected with the heating element.

6. The drying and sizing apparatus for adsorbent granules according to claim 5, characterized by, The screening mesh rack is provided with screening holes, and the distance between the bottom of the stirring blade and the screening mesh rack is 1 / 3-1 / 2 of the diameter of the screening holes.

7. The drying and sizing apparatus for adsorbent granules according to claim 6, characterized by, The stirring blades are arranged in an inclined manner, and the height of the lowest point of one end of the stirring blade facing the inner wall of the drying part is lower than that of the lowest point of the other end of the stirring blade connected with the stirring shaft.

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