Molecular sieve dehydration material drying device

Abstract

The utility model relates to the field of drying devices, in particular to a molecular sieve dehydration material drying device which comprises a drying box, a heat exchange box, a regeneration box, a gas storage box and a regeneration assembly. One side of the drying box is communicated with the heat exchange box used for preheating the molecular sieve, one side of the heat exchange box is communicated with the regeneration box used for regenerating the molecular sieve, the top end of the regeneration box is provided with the regeneration assembly used for separating water molecules on the surface of the molecular sieve, and the outside of the regeneration assembly is communicated with the gas storage box used for providing inert gas. A heating plate is embedded in the drying box, a base is installed at the bottom end of the drying box, a rotating shaft penetrates through the center of the base, one end of the rotating shaft is sleeved with a packed bed, in the drying process of the motor and the rotating shaft, the packed bed rotates slowly, and materials enter from the tangential direction of one side of the packed bed and spirally penetrate through a molecular sieve layer under the combined action of centrifugal force and airflow; the dynamic rotation mode increases the contact opportunity and the contact area of the material and the molecular sieve, and improves the drying efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying device field, especially relate to molecular sieve dehydration material drying device. BACKGROUND

[0002] Molecular sieve dehydration material drying device is a kind of equipment using the adsorption characteristics of molecular sieve material, removes the moisture in material, to achieve the purpose of drying, molecular sieve is a kind of crystalline silicate with uniform microporous structure, its pore size is uniform, can selectively adsorb the substance with pore size matched with molecular size, is mainly used for adsorbing water molecules in material in the device.

[0003] The existing molecular sieve dehydration material drying device mostly adopts direct filtration drying in drying mode, this mode has some limitations in practical application, since it mainly relies on the direct contact filtration of material and molecular sieve to realize dehydration, when material passes through molecular sieve layer, the mass transfer path is relatively single and limited, so that the rate of water molecules migrating from material to molecular sieve surface and being adsorbed is difficult to be significantly improved, in large-scale industrial production or in the scene with higher requirement for drying efficiency, production efficiency will be seriously affected.

[0004] Therefore, in view of the above problems that the existing molecular sieve drying device mostly adopts direct filtration drying, relies on the direct contact of material and molecular sieve, the mass transfer path is single and limited, the migration and adsorption rate of water molecules is difficult to increase, and in large-scale production or high drying efficiency requirement scene, production efficiency is seriously affected, a molecular sieve dehydration material drying device can be designed, in the drying process, the packed bed slowly rotates at a certain speed, the material enters from the tangent direction of one side of the packed bed, under the joint action of centrifugal force and airflow, presents spiral shape and passes through molecular sieve layer, this dynamic rotating mode increases the contact opportunity and contact area of material and molecular sieve, thereby improving drying efficiency. SUMMARY

[0005] In order to overcome the problem that the existing molecular sieve drying device mostly adopts direct filtration drying, relies on the direct contact of material and molecular sieve, the mass transfer path is single and limited, the migration and adsorption rate of water molecules is difficult to increase, and in large-scale production or high drying efficiency requirement scene, production efficiency is seriously affected.

[0006] The utility model discloses a technical scheme for a molecular sieve dehydration material drying device, which comprises a drying box, a heat exchange box, a regeneration box, a gas storage tank and a regeneration assembly.

[0007] Preferably, the material is fed into the drying box, and the heating plate in the drying box heats the material to increase the temperature of the material, so that the water molecules in the material are more easily adsorbed by the molecular sieve. At the same time, the rotating shaft drives the packed bed to rotate slowly, and the molecular sieve in the packed bed is in full contact with the material during the rotation. Since the molecular sieve has a porous structure and has strong adsorption of water molecules, the water molecules in the material are adsorbed into the micropores of the molecular sieve when they come into contact with the molecular sieve, thereby realizing the drying of the material. The dried material is discharged from the discharge port of the drying box. When the molecular sieve adsorbs water to saturation, it enters the regeneration stage. At this time, the heat exchange box starts to work, and the waste heat of the humid hot air discharged during the drying process is used to preheat the molecular sieve to be regenerated. The flow channel in the heat exchange box is designed to enable the hot carrier to perform countercurrent heat exchange with the cold molecular sieve, so that the temperature of the molecular sieve is increased and the moisture capacity is decreased, thereby preparing for the subsequent regeneration. The preheated molecular sieve enters the regeneration box, and the regeneration assembly is started. The gas storage tank provides inert gas to the regeneration assembly. The regeneration assembly blows the inert gas against the molecular sieve. Under the combined action of heating and blowing, the water molecules originally adsorbed in the micropores of the molecular sieve obtain enough energy to overcome the adsorption force and separate from the surface of the molecular sieve, and are carried out of the regeneration box by the inert gas, thereby realizing the regeneration of the molecular sieve. The regenerated molecular sieve can be reused in the drying process in the drying box, ensuring the continuous and efficient operation of the device.

[0008] As a preferred embodiment, a rotating motor is installed on the other end of the rotating shaft above the base. Two sets of first connection pipes are symmetrically installed outside the packed bed, and a molecular sieve inlet pipe is installed at the center of the two sets of first connection pipes. An inlet cover is installed at the top of the drying box, and an inlet handle is installed at the top of the inlet cover.

[0009] As a preferred embodiment, a power supply is installed above the rotating motor at the bottom end of the base. Four sets of first support columns are annularly installed at the bottom end of the base. The rotating motor drives the rotating shaft to rotate the packed bed. The power supply is electrically connected to the heating plate. A second connection pipe is symmetrically connected to one side of the heating plate. An outlet pipe is connected to the outside of the drying box, and an electronic valve is installed inside the outlet pipe.

[0010] As preferred, the heat exchange box is communicated with the secondary regeneration pipe at one end, communicated with the primary regeneration pipe at the other end, communicated with the primary exhaust pipe at the top end close to the secondary regeneration pipe, communicated with the secondary exhaust pipe outside close to the primary regeneration pipe, and symmetrically installed with the secondary support column at the bottom end.

[0011] As preferred, a plurality of groups of mounting holes are linearly arranged outside the regeneration box, a regeneration cover plate is installed at one end of the regeneration box, a regeneration cover handle is installed at one side of the regeneration cover plate, and two groups of tertiary support columns are symmetrically installed at the bottom end of the regeneration box.

[0012] As preferred, four groups of quaternary support columns are annularly installed at the bottom end of the gas storage box, a gas inlet pipe is communicated with one side of the gas storage box, a pipe plug is installed on the gas inlet pipe, and a primary gas injection pipe is communicated with the other side of the gas storage box.

[0013] As preferred, the regeneration assembly comprises an air compressor, the air compressor is communicated with a secondary gas injection pipe at the top end, the secondary gas injection pipe is communicated with a tertiary gas injection pipe at one end, the tertiary gas injection pipe is linearly communicated with four groups of air injection pipes at the bottom end, and two groups of quinary support columns are symmetrically installed at the bottom end of the air compressor.

[0014] The beneficial effects of the present application are as follows: the rotating motor drives the rotating shaft to rotate the packed bed, which breaks the relative static state of the material and the molecular sieve, and in the rotating process, the molecular sieve continuously updates the contact interface with the material, so that the water molecules in the material have more opportunities to contact and be adsorbed by the molecular sieve, significantly improving the drying speed, and the embedded heating plate in the drying box can provide stable and uniform heat, so that the material is evenly heated, avoiding local overheating or insufficient drying, compared with the traditional direct heating of the material and the molecular sieve, this indirect heating method can more accurately control the temperature and reduce energy waste. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The overall structure schematic diagram of the molecular sieve dehydration material drying device is shown.

[0016] Fig. 2 The overall explosion structure schematic diagram of the molecular sieve dehydration material drying device is shown.

[0017] Fig. 3 The regeneration assembly structure schematic diagram of the molecular sieve dehydration material drying device is shown.

[0018] Fig. 4 The gas storage box structure schematic diagram of the molecular sieve dehydration material drying device is shown.

[0019] Explanation of reference signs: 1, drying box; 2, heat exchange box; 3, regeneration box; 4, gas storage box; 101, discharge pipe; 102, base; 103, feeding handle; 104, feeding cover; 105, primary connecting pipe; 106, molecular sieve inlet pipe; 107, rotary motor; 108, rotating shaft; 109, packed bed; 110, secondary connecting pipe; 111, power supply; 112, heating plate; 113, primary support column; 201, primary exhaust pipe; 202, secondary regeneration pipe; 203, secondary exhaust pipe; 204, primary regeneration pipe; 205, secondary support column; 301, mounting hole; 302, regeneration cover plate; 303, tertiary support column; 304, regeneration cover handle; 401, quaternary support column; 402, air inlet pipe; 403, pipe plug; 404, primary air injection pipe; 501, air compressor; 502, quinary support column; 503, secondary air injection pipe; 504, tertiary air injection pipe; 505, air injection pipe. DETAILED DESCRIPTION

[0020] The utility model will be further explained in connection with the drawings and examples.

[0021] Please refer to Figs. 1-4The utility model provides a kind of embodiment: molecular sieve dewatering material drying device, including drying box 1, heat exchange box 2, regeneration box 3, gas storage tank 4 and regeneration assembly;Drying box 1 side is connected with the heat exchange box 2 for the preheating treatment of molecular sieve, heat exchange box 2 side is connected with the regeneration box 3 for regenerating molecular sieve, and regeneration box 3 top end is equipped with the regeneration assembly for the moisture molecule of separation molecular sieve surface, and regeneration assembly outside is connected with the gas storage tank 4 for providing inert gas, and drying box 1 inside is embedded with heating plate 112, and drying box 1 bottom end is equipped with base 102, and base 102 center is equipped with shaft 108, and shaft 108 one end is equipped with packed bed 109, material is sent into drying box 1, and heating plate 112 in drying box 1 heats material, to promote material temperature, so that moisture in it is more easily adsorbed by molecular sieve, simultaneously, shaft 108 drives packed bed 109 to rotate slowly, and molecular sieve in packed bed 109 is fully contacted with material in the process of rotation, since molecular sieve has porous structure and has very strong adsorptivity to water molecule, water molecule in material is adsorbed into the micropore of molecular sieve when being contacted with molecular sieve, to realize the drying of material, and dried material is discharged from the discharge port of drying box 1, when molecular sieve adsorbs water and reaches saturation, enters regeneration stage, at this time, heat exchange box 2 starts to work, and the waste heat of wet hot air discharged in drying process is used to preheat molecular sieve to be regenerated, and the flow channel in heat exchange box 2 is designed, so that heat carrier and cold molecular sieve carry out counterflow heat exchange, so that molecular sieve temperature rises, and wet capacity drops, to prepare for subsequent regeneration, and the molecular sieve after preheating enters regeneration box 3, and regeneration assembly starts, and gas storage tank 4 provides inert gas to regeneration assembly, and regeneration assembly sweeps molecular sieve with inert gas in specific mode, such as pulse airflow, under the joint action of heating and sweeping, water molecule originally adsorbed in the micropore of molecular sieve obtains enough energy to overcome adsorption force and separates from molecular sieve surface, and is carried out by inert gas and leaves regeneration box 3, to realize the regeneration of molecular sieve, and the molecular sieve after regeneration can be used in drying process in drying box 1 again, to ensure the sustained and efficient operation of device.

[0022] Please refer to Figs. 1-3In this embodiment, the other end of the rotating shaft 108 is installed with a rotary motor 107 on the base 102, two sets of primary connecting pipes 105 are symmetrically installed outside the packed bed 109, a molecular sieve inlet pipe 106 is installed at the center of the two sets of primary connecting pipes 105, a feeding cover 104 is installed at the top end of the drying box 1, a feeding handle 103 is installed at the top end of the feeding cover 104, the rotary motor 107 can accurately control the rotating speed of the rotating shaft 108, so as to drive the packed bed 109 to rotate at a stable and appropriate speed, the molecular sieve inlet pipe 106 provides a special channel for the filling and replenishment of molecular sieve, a power supply 111 is installed at the bottom end of the base 102 above the rotary motor 107, four sets of primary support columns 113 are annularly installed at the bottom end of the base 102, the rotary motor 107 drives the rotating shaft 108 to drive the packed bed 109 to rotate, the power supply 111 is electrically connected with the heating plate 112, the heating plate 112 is symmetrically communicated with the secondary connecting pipe 110 on one side, the drying box 1 is communicated with the discharge pipe 101 outside, and the electronic valve is installed inside the discharge pipe 101, so that the power supply 111 is close to the electric equipment such as the rotary motor 107 and the heating plate 112, the length of the power supply line is shortened, the loss of electric energy in the transmission process is reduced, and the utilization efficiency of electric energy is improved.

[0023] Please refer to Figs. 2-4 In this embodiment, the one end of the heat exchange box 2 is communicated with the secondary regeneration pipe 202, the other end of the heat exchange box 2 is communicated with the primary regeneration pipe 204, the one end of the heat exchange box 2 is communicated with the primary exhaust pipe 201 close to the secondary regeneration pipe 202, the heat exchange box 2 is communicated with the secondary exhaust pipe 203 close to the primary regeneration pipe 204 outside, the bottom end of the heat exchange box 2 is symmetrically installed with the secondary support column 205, the secondary support column 205 provides a stable support structure for the heat exchange box 2, the symmetrically installed mode makes the heat exchange box 2 uniformly stressed, the secondary regeneration pipe 202 and the primary regeneration pipe 204 are respectively connected with different positions of the heat exchange box 2, so that a specific material flow path can be formed in the molecular sieve regeneration process, a plurality of installation holes 301 are linearly arranged on the outside of the regeneration box 3, the regeneration cover plate 302 is installed at one end of the regeneration box 3, the regeneration cover handle 304 is installed on one side of the regeneration cover plate 302, two sets of tertiary support columns 303 are symmetrically installed at the bottom end of the regeneration box 3, and the regeneration cover plate 302 facilitates the operation of repairing and recycling molecular sieve in the regeneration box 3.

[0024] Please refer to Figs. 3-4In the embodiment, the bottom end of the gas storage tank 4 is annularly mounted with four groups of four-stage support columns 401, one side of the gas storage tank 4 is communicated with an air inlet pipe 402, the air inlet pipe 402 is mounted with a pipe plug 403, the other side of the gas storage tank 4 is communicated with a first-stage air injection pipe 404, the air inlet pipe 402 provides a special channel for supplementing gas to the gas storage tank 4, when it is needed to add inert gas to the gas storage tank 4 or to replace or adjust the composition of the gas, the operation can be conveniently performed through the air inlet pipe 402, the regeneration assembly comprises an air compressor 501, the top end of the air compressor 501 is communicated with a second-stage air injection pipe 503, one end of the second-stage air injection pipe 503 is communicated with a third-stage air injection pipe 504, the bottom end of the third-stage air injection pipe 504 is linearly communicated with four groups of air injection pipes 505, the bottom end of the air compressor 501 is symmetrically mounted with two groups of five-stage support columns 502, the air compressor 501 is the power core of the regeneration assembly, can compress air and other gases to a high pressure, and provides a stable and certain pressure gas source for the subsequent purging step in the process of regenerating the molecular sieve, through the compressed gas, the kinetic energy and impact force of the gas molecules can be enhanced, so that the gas can more effectively purge the impurities such as water molecules adsorbed in the micropores of the molecular sieve when the gas contacts the molecular sieve.

[0025] In the process of working, first, the material to be dried is conveyed into the drying box 1, the power supply 111 supplies power to the heating plate 112, the heating plate 112 heats the material, at the same time, the rotary motor 107 drives the rotating shaft 108 to drive the packed bed 109 to rotate, so that the molecular sieve in the packed bed 109 fully contacts the material, the water molecules in the material are adsorbed by the molecular sieve, and the drying process is realized, the dried material is discharged from the drying box 1, when the molecular sieve is saturated, regeneration is needed, the heat exchange box 2 receives the molecular sieve to be regenerated from the packed bed 109 through the first-stage regeneration pipe 204, and preheats the molecular sieve by using the waste heat generated in the drying process, the waste gas generated in the preheating process can be discharged through the second-stage exhaust pipe 203, the preheated molecular sieve enters the regeneration box 3, the gas storage tank 4 can supplement inert gas through the air inlet pipe 402, in the process of regeneration, the inert gas in the gas storage tank 4 enters the regeneration assembly through the first-stage air injection pipe 404, the air compressor 501 in the regeneration assembly is started, the gas is compressed and then transmitted to the four groups of air injection pipes 505 through the second-stage air injection pipe 503 and the third-stage air injection pipe 504 in turn, the high-pressure inert gas is sprayed out from the air injection pipes 505, the molecular sieve in the regeneration box 3 is purged, at the same time, the water molecules adsorbed on the surface of the molecular sieve are separated by combining with heating and other modes, and the regenerated molecular sieve remains in the regeneration box 3 and waits for subsequent circulation.

[0026] Through the above steps, the material is sent into the drying box 1, the heating plate 112 in the drying box 1 heats the material to improve the temperature of the material, so that the moisture in the material is more easily adsorbed by the molecular sieve, at the same time, the rotating shaft 108 drives the packed bed 109 to rotate slowly, the molecular sieve in the packed bed 109 is in full contact with the material during the rotation, because the molecular sieve has a porous structure and has a strong adsorption to water molecules, the water molecules in the material are adsorbed into the micropores of the molecular sieve when they contact with the molecular sieve, so that the drying of the material is realized, the dried material is discharged from the discharge port of the drying box 1, when the molecular sieve adsorbs water to saturation, the regeneration stage is entered, at this time, the heat exchange box 2 starts to work, the waste heat of the wet hot air discharged during the drying process is used to preheat the molecular sieve to be regenerated, the flow channel in the heat exchange box 2 is designed to make the heat carrier and the cold molecular sieve counterflow heat exchange, so that the temperature of the molecular sieve is increased and the moisture capacity is decreased, preparing for the subsequent regeneration, the preheated molecular sieve enters the regeneration box 3, the regeneration assembly is started, the gas storage tank 4 provides inert gas to the regeneration assembly, the regeneration assembly blows the inert gas to the molecular sieve in a specific way such as pulse airflow, under the joint action of heating and blowing, the water molecules originally adsorbed in the micropores of the molecular sieve obtain enough energy to overcome the adsorption force and separate from the surface of the molecular sieve, and are taken out of the regeneration box 3 by the inert gas, so that the regeneration of the molecular sieve is realized, the regenerated molecular sieve can be recycled in the drying process in the drying box 1 again, ensuring the continuous and efficient operation of the device.

Claims

1. A drying device for molecular sieve dehydration materials, comprising a drying chamber (1); characterized in that: It also includes a heat exchange box (2), a regeneration box (3), a gas storage box (4) and a regeneration component; the drying box (1) is connected to a heat exchange box (2) for preheating the molecular sieve on one side, and a regeneration box (3) for regenerating the molecular sieve on one side of the heat exchange box (2). A regeneration component for removing water molecules from the surface of the molecular sieve is installed at the top of the regeneration box (3). A gas storage box (4) for providing inert gas is connected to the outside of the regeneration component. A heating plate (112) is embedded inside the drying box (1). A base (102) is installed at the bottom of the drying box (1). A rotating shaft (108) is installed through the center of the base (102). A packed bed (109) is fitted at one end of the rotating shaft (108).

2. The molecular sieve dehydration material drying device according to claim 1, characterized in that: A rotary motor (107) is installed on the base (102) at the other end of the rotating shaft (108). Two sets of primary connecting pipes (105) are symmetrically installed on the outside of the filling bed (109). A molecular sieve inlet pipe (106) is installed at the center of the two sets of primary connecting pipes (105). A feed cover (104) is installed at the top of the drying box (1). A feed handle (103) is installed at the top of the feed cover (104).

3. The molecular sieve dehydration material drying device according to claim 2, characterized in that: The bottom of the base (102) is located above the rotary motor (107) and a power supply (111) is installed. Four sets of primary support columns (113) are installed in a ring at the bottom of the base (102). The rotary motor (107) drives the rotating shaft (108) to rotate the filling bed (109). The power supply (111) is electrically connected to the heating plate (112). A secondary connecting pipe (110) is symmetrically connected to one side of the heating plate (112). A discharge pipe (101) is connected to the outside of the drying oven (1). An electronic valve is installed inside the discharge pipe (101).

4. The molecular sieve dehydration material drying device according to claim 1, characterized in that: One end of the heat exchange box (2) is connected to a secondary regeneration pipe (202), and the other end of the heat exchange box (2) is connected to a primary regeneration pipe (204). The top of the heat exchange box (2) is connected to a primary exhaust pipe (201) near the secondary regeneration pipe (202). The outside of the heat exchange box (2) is connected to a secondary exhaust pipe (203) near the primary regeneration pipe (204). The bottom of the heat exchange box (2) is symmetrically equipped with secondary support columns (205).

5. The molecular sieve dehydration material drying device according to claim 1, characterized in that: The regeneration box (3) has multiple sets of mounting holes (301) linearly opened on the outside. A regeneration cover plate (302) is installed at one end of the regeneration box (3). A regeneration cover handle (304) is installed on one side of the regeneration cover plate (302). Two sets of three-level support columns (303) are symmetrically installed at the bottom of the regeneration box (3).

6. The molecular sieve dehydration material drying device according to claim 1, characterized in that: The bottom of the gas storage tank (4) is equipped with four sets of four-stage support columns (401). One side of the gas storage tank (4) is connected to an air inlet pipe (402), and a pipe plug (403) is installed on the air inlet pipe (402). The other side of the gas storage tank (4) is connected to a first-stage gas injection pipe (404).

7. The molecular sieve dehydration material drying device according to claim 1, characterized in that: The regeneration assembly includes an air compressor (501), a secondary air injection pipe (503) connected to the top of the air compressor (501), a tertiary air injection pipe (504) connected to one end of the secondary air injection pipe (503), four sets of air nozzles (505) linearly connected to the bottom of the tertiary air injection pipe (504), and two sets of five-stage support columns (502) symmetrically installed at the bottom of the air compressor (501).

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