Molecular sieve dehydration device

Abstract

The utility model relates to the technical field of dehydration of chemical products, in particular to a molecular sieve dehydration device. Comprising a tank body, a first dehydration device is fixed in the tank body, a second dehydration device is arranged below the first dehydration device, a third dehydration device is arranged below the second dehydration device, and materials overflowing from the upper end of the first dehydration device can enter the second dehydration device. The outlet end of the first dehydration device and the outlet end of the second dehydration device are communicated with the third dehydration device, an upper porous plate is fixed in the tank body between the first dehydration device and the second dehydration device, and a lower porous plate is fixed in the tank body between the second dehydration device and the third dehydration device. Through the upper perforated plate, the materials discharged from the overflow holes can be subjected to liquid distribution by the upper perforated plate, so that the materials can uniformly penetrate through the molecular sieve between the upper perforated plate and the middle conical net, and the dehydration efficiency of the materials is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of chemical product dehydration technical field, specifically to a molecular sieve dehydration device. BACKGROUND

[0002] The existing part of dehydration device usually adopts molecular sieve dehydration, molecular sieve is contained in dehydration tank, liquid phase material gradually penetrates from the upper surface of molecular sieve bed. Water molecules enter the molecular sieve pore on the upper surface of molecular sieve bed in the process of downward movement, so that only when the molecular sieve pore on the upper surface of molecular sieve bed is filled, it can continue to go down, and the molecular sieve bed structure that is tightly pressed together, when carrying out adsorption dehydration to liquid phase, due to the resistance generated by molecular sieve bed upper surface pore adsorbing water, the flow rate of liquid phase is reduced, thereby leading to low dehydration efficiency. When liquid phase enters dehydration tank from feed inlet through ordinary liquid distributor, it is easy to make liquid phase concentrate in certain place of molecular sieve bed, and it is impossible to evenly wet molecular sieve bed, so liquid phase needs to slowly penetrate to the position of other molecular sieve, further reducing dehydration efficiency.

[0003] The patent document with publication number CN209464637U discloses a molecular sieve dehydration device, when using, liquid phase material enters through distributor, disperses into funnel-shaped bed body through distribution hole and umbrella-shaped distribution disc, when liquid level reaches liquid passage position, it will overflow into annular bed body around funnel-shaped bed body, until material liquid surface reaches liquid level sensor position to stop feeding, then molecular sieve and molecular sieve II jointly carry out primary dehydration to material entering dehydration tank body, material dehydrated by molecular sieve and molecular sieve II finally falls on the upper side of secondary molecular sieve adsorption bed to carry out secondary dehydration by molecular sieve III, and then is unloaded by dehydration material outlet. When replacing molecular sieve, the molecular sieve dehydration device is inconvenient to discharge molecular sieve. Material contacts molecular sieve II through liquid passage, cannot be uniformly distributed, thereby leading to low dehydration efficiency of molecular sieve II to material. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is a molecular sieve dehydration device which can conveniently discharge molecular sieve for replacement and further improve dehydration efficiency of material.

[0005] In order to achieve the above purpose, the technical scheme provided by the utility model is:

[0006] The application discloses a molecular sieve dehydration device, which comprises a tank body, a first dehydration device fixed in the tank body, a second dehydration device arranged below the first dehydration device, and a third dehydration device arranged below the second dehydration device. Material overflowing from the upper end of the first dehydration device can enter the second dehydration device. The outlet end of the first dehydration device and the outlet end of the second dehydration device are communicated with the third dehydration device. An upper porous plate is fixed in the tank body between the first dehydration device and the second dehydration device. A lower porous plate is fixed in the tank body between the second dehydration device and the third dehydration device. A first discharge pipe is fixed and communicated with the lower end of the first dehydration device. The lower end of the first discharge pipe penetrates the second dehydration device, the third dehydration device and the lower end of the tank body, and is sealed. A second discharge pipe is fixed and communicated with the lower end of the second dehydration device. The lower end of the second discharge pipe penetrates the third dehydration device and the lower end of the tank body, and is sealed. A third discharge pipe is fixed and communicated with the lower end of the third dehydration device. The lower end of the third discharge pipe penetrates the lower end of the tank body, and is sealed. The first discharge pipe penetrates the second discharge pipe, and the second discharge pipe penetrates the third discharge pipe. A feeding assembly is fixed and communicated with the first dehydration device at the upper end of the tank body. A discharge pipe is fixed and communicated with the tank body at the lower end of the tank body.

[0007] Specifically, the first dehydration device comprises an inner cylinder arranged in the tank body, the lower end of the inner cylinder is fixedly connected with the tank body through a plurality of supporting rods, the upper end of the inner cylinder is open, an upper conical screen is fixed in the inner cylinder, the inner cylinder above the upper conical screen is filled with molecular sieve, an overflow hole is arranged at the upper end of the inner cylinder, the upper end of the first discharge pipe is fixedly connected with the upper conical screen, the first discharge pipe is partially communicated with the inner cylinder above the upper conical screen, the molecular sieve in the inner cylinder can be discharged to the outside of the tank body through the first discharge pipe, and a lower pipe is fixedly connected with the lower end of the inner cylinder and penetrates the second dehydration device.

[0008] Specifically, the feeding assembly comprises a feeding pipe fixed on the top plate of the tank body, the feeding pipe penetrates the top plate of the tank body, and a liquid distributor is fixed at the lower end of the feeding pipe and arranged above the inner cylinder.

[0009] Specifically, the second dehydration device comprises a middle conical screen fixed in the tank body, the lower pipe penetrates the upper porous plate and the middle conical screen, the tank body between the middle conical screen and the upper porous plate is filled with molecular sieve, the upper end of the second discharge pipe is fixedly connected with the lower end of the middle conical screen, the second discharge pipe is partially communicated with the tank body between the middle conical screen and the upper porous plate, and the molecular sieve between the middle conical screen and the upper porous plate can be discharged through the second discharge pipe.

[0010] Specifically, the third dehydration device comprises a lower conical screen fixed in the tank body, and the tank body between the lower conical screen and the lower porous plate is filled with molecular sieve.

[0011] Specific, the third row pipe lower end detachable fixed sealing connection has upper seal ring, second row pipe lower end penetrates upper seal ring, second row pipe and upper seal ring detachable fixed sealing connection;Second seal plate lower end detachable fixed sealing connection has lower seal ring, first row pipe penetrates lower seal ring, first row pipe and lower seal ring detachable fixed sealing connection;First row pipe lower end detachable fixed sealing connection has seal plate.

[0012] Specific, the tank body inner wall is fixed with liquid level sensor, liquid level sensor is located between overflow hole and the lower end of inner cylinder, the inlet pipe is installed with electromagnetic valve, electromagnetic valve, power supply, liquid level sensor and controller electric connection.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1, through the upper porous plate, the material discharged from the overflow hole can be liquid distribution by the upper porous plate, so that the material can uniformly pass through the molecular sieve between the upper porous plate and the middle cone net, and the dehydration efficiency of the material is ensured.

[0015] 2, by setting first row pipe, second row pipe and third row pipe, the molecular sieve above the upper cone net, the molecular sieve above the middle cone net and the molecular sieve above the lower cone net are conveniently discharged, and the molecular sieve is conveniently replaced.

[0016] 3, the molecular sieve in the inner cylinder and the molecular sieve above the middle cone net can respectively dehydrate the material, and the material passing through the molecular sieve in the inner cylinder and the molecular sieve above the middle cone net can be dehydrated again by the molecular sieve above the lower cone net, so that the dehydration effect of the material is good. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the sectional view of the utility model.

[0018] Figure 2 It is the sectional structure schematic view of the utility model.

[0019] The names of parts in the drawings are: 1, tank body, 2, inlet pipe, 3, liquid distributor, 4, inner cylinder, 5, overflow hole, 6, upper cone net, 7, support rod, 8, liquid level sensor, 9, lower pipe, 10, upper porous plate, 11, middle cone net, 12, lower porous plate, 13, lower cone net, 14, outlet pipe, 15, first row pipe, 16, second row pipe, 17, third row pipe, 18, upper seal ring, 19, lower seal ring, 20, seal plate. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Embodiment one: refer to Figures 1-2 As shown in the figure, a molecular sieve dehydration device, comprising a tank body 1, a first dehydration device is fixed in the tank body 1, a second dehydration device is arranged below the first dehydration device, a third dehydration device is arranged below the second dehydration device, the material overflowing from the upper end of the first dehydration device can enter the second dehydration device, the outlet end of the first dehydration device and the outlet end of the second dehydration device are communicated with the third dehydration device.

[0022] A upper porous plate 10 is fixed in the tank body 1 between the first dehydration device and the second dehydration device, and a lower porous plate 12 is fixed in the tank body 1 between the second dehydration device and the third dehydration device. A first drain pipe 15 is fixed and communicated at the lower end of the first dehydration device, the lower end of the first drain pipe 15 penetrates the second dehydration device, the third dehydration device and the lower end of the tank body 1, and the lower end of the first drain pipe 15 is blocked.

[0023] A second drain pipe 16 is fixed and communicated at the lower end of the second dehydration device, the lower end of the second drain pipe 16 penetrates the third dehydration device and the lower end of the tank body 1, and the lower end of the second drain pipe 16 is blocked.

[0024] A third drain pipe 17 is fixed and communicated at the lower end of the third dehydration device, the lower end of the third drain pipe 17 penetrates the lower end of the tank body 1, and the lower end of the third drain pipe 17 is blocked.

[0025] The first dehydration device comprises an inner cylinder 4 located in the tank body 1, the lower end of the inner cylinder 4 is fixedly connected with the tank body 1 through a plurality of support rods 7, the upper end of the inner cylinder 4 is open, a upper conical screen 6 is fixed in the inner cylinder 4, the inner cylinder 4 above the upper conical screen 6 is filled with molecular sieve, an overflow hole 5 is arranged at the upper end of the inner cylinder 4, the upper end of the first drain pipe 15 is fixedly connected with the upper conical screen 6, the first drain pipe 15 is partially communicated with the inner cylinder 4 above the upper conical screen 6, the molecular sieve in the inner cylinder 4 can be discharged to the outside of the tank body 1 through the first drain pipe 15, a lower pipe 9 is fixedly connected and communicated at the lower end of the inner cylinder, and the lower pipe 9 penetrates the second dehydration device.

[0026] A feeding assembly communicated with the first dehydration device is fixed at the upper end of the tank body 1, and a outlet pipe 14 is fixed and communicated at the lower end of the tank body 1. The feeding assembly comprises a inlet pipe 2 fixed on the top plate of the tank body 1, the inlet pipe 2 penetrates the top plate of the tank body 1, a liquid distributor 3 is fixed at the lower end of the inlet pipe 2, and the liquid distributor 3 is located above the inner cylinder 4.

[0027] The second dehydration device comprises a middle conical screen 11 fixed in the tank body 1, the lower pipe 9 penetrates the upper porous plate 10 and the middle conical screen 11, the tank body 1 between the middle conical screen 11 and the upper porous plate 10 is filled with molecular sieve, the upper end of the second drain pipe 16 is fixedly connected with the lower end of the middle conical screen 11, the second drain pipe 16 is partially communicated with the tank body 1 between the middle conical screen 11 and the upper porous plate 10, and the molecular sieve between the middle conical screen 11 and the upper porous plate 10 can be discharged through the second drain pipe 16.

[0028] The third dewatering device includes a lower conical screen 13 fixed in the tank body 1, and the tank body 1 between the lower conical screen 13 and the lower perforated plate 12 is filled with molecular sieves.

[0029] The material in the inlet pipe 2 is uniformly distributed after passing through the liquid distributor 3, and the material enters the inner cylinder 4 and contacts the molecular sieves in the inner cylinder 4, which can perform the first dewatering on the material.

[0030] As the material in the inner cylinder 4 continuously increases, the material in the inner cylinder 4 overflows through the overflow hole 5 to the upper perforated plate 10, and the material is distributed by the upper perforated plate 10 and contacts the molecular sieves above the middle conical screen 11, and the material passing through the molecular sieves above the middle conical screen 11 flows downward after passing through the middle conical screen 11. The material passing through the molecular sieves in the inner cylinder 4 and the upper conical screen 6 flows downward through the lower pipe 9. The material discharged from the lower pipe 9 and the material discharged from the middle conical screen 11 falls onto the lower perforated plate 12, and the material passing through the upper perforated plate 10 passes through the molecular sieves above the lower conical screen 13 and the lower conical screen 13 in turn and is discharged through the outlet pipe 14. By providing the upper perforated plate 10, the material discharged from the overflow hole 5 can be distributed by the upper perforated plate 10, which can make the material uniformly pass through the molecular sieves between the upper perforated plate 10 and the middle conical screen 11, thereby ensuring the dewatering efficiency of the material.

[0031] After opening the lower end of the first discharge pipe 15, the lower end of the second discharge pipe 16, and the lower end of the third discharge pipe 17, the molecular sieves above the upper conical screen 6, the molecular sieves above the middle conical screen 11, and the molecular sieves above the lower conical screen 13 can be discharged to the outside of the tank body 1, which facilitates replacement of the molecular sieves.

[0032] Example Two: Based on Example One, referring to Figure 1 The third discharge pipe 17 is connected to the second discharge pipe 16, and the second discharge pipe 16 is connected to the first discharge pipe 15. The lower end of the third discharge pipe 17 is detachably and sealingly connected to the upper sealing ring 18, the lower end of the second discharge pipe 16 penetrates the upper sealing ring 18, and the second discharge pipe 16 is detachably and sealingly connected to the upper sealing ring 18. The lower end of the second sealing plate 20 is detachably and sealingly connected to the lower sealing ring 19, the first discharge pipe 15 penetrates the lower sealing ring 19, and the first discharge pipe 15 is detachably and sealingly connected to the lower sealing ring 19. The lower end of the first discharge pipe 15 is detachably and sealingly connected to the sealing plate 20.

[0033] When replacing the molecular sieves, the upper sealing ring 18 is opened, and the molecular sieves above the lower conical screen 13 can be discharged to the outside of the tank body 1. When the lower sealing ring 19 is opened, the molecular sieves above the middle conical screen 11 can be discharged to the outside of the tank body 1. When the sealing plate 20 is opened, the molecular sieves above the upper conical screen 6 can be discharged to the outside of the tank body 1.

[0034] Example Three: Based on Example One, referring to Figure 1As shown, the inner wall of the tank body 1 is fixed with a liquid level sensor 8, the liquid level sensor 8 is located between the overflow hole 5 and the lower end of the inner cylinder 4, the inlet pipe 2 is installed with a solenoid valve, the solenoid valve, the power supply, the liquid level sensor 8 and the controller are electrically connected.

[0035] When the material liquid surface between the inner cylinder 4 and the tank body 1 is detected by the liquid level sensor 8, the controller closes the solenoid valve, the material stops adding to the inner cylinder 4, and the tank body 1 can be prevented from being added with excessive material.

[0036] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A molecular sieve dewatering device, comprising a tank body (1), a first dewatering device is fixed in the tank body (1), a second dewatering device is arranged below the first dewatering device, a third dewatering device is arranged below the second dewatering device, material overflowing from the upper end of the first dewatering device can enter into the second dewatering device, the outlet end of the first dewatering device and the outlet end of the second dewatering device are communicated with the third dewatering device, characterized in that, A first dehydration device and a second dehydration device are fixed in the tank (1), a second dehydration device and a third dehydration device are fixed in the tank (1), a first drain pipe (15) is fixed at the lower end of the first dehydration device, the lower end of the first drain pipe (15) penetrates the second dehydration device, the third dehydration device and the lower end of the tank (1), the lower end of the first drain pipe (15) is blocked, a second drain pipe (16) is fixed at the lower end of the second dehydration device, the lower end of the second drain pipe (16) penetrates the third dehydration device and the lower end of the tank (1), the lower end of the second drain pipe (16) is blocked, a third drain pipe (17) is fixed at the lower end of the third dehydration device, the lower end of the third drain pipe (17) penetrates the lower end of the tank (1), the lower end of the third drain pipe (17) is blocked, the first drain pipe (15) penetrates the second drain pipe (16), the second drain pipe (16) penetrates the third drain pipe (17), the upper end of the tank (1) is fixed with a feeding assembly communicating with the first dehydration device, and the lower end of the tank (1) is fixed with a discharge pipe (14) communicating.

2. The molecular sieve dehydration unit of claim 1, wherein, The first dehydration device includes an inner cylinder (4) located in the tank (1), the lower end of the inner cylinder (4) is fixedly connected with the tank (1) through a plurality of support rods (7), the upper end of the inner cylinder (4) is open, an upper conical screen (6) is fixed in the inner cylinder (4), molecular sieve is filled in the upper end of the inner cylinder (4), an overflow hole (5) is formed in the upper end of the inner cylinder (4), the upper end of the first drain pipe (15) is fixedly connected with the upper conical screen (6), the first drain pipe (15) is partially communicated with the upper end of the inner cylinder (4) above the upper conical screen (6), the molecular sieve in the inner cylinder (4) can be discharged to the outside of the tank (1) through the first drain pipe (15), and the lower end of the cylinder body is fixedly connected with a lower pipe (9) penetrating the second dehydration device.

3. The molecular sieve dehydration unit of claim 2 wherein, The feeding assembly includes a feeding pipe (2) fixed on the top plate of the tank (1), the feeding pipe (2) penetrates the top plate of the tank (1), and a liquid distributor (3) is fixed at the lower end of the feeding pipe (2) and located above the inner cylinder (4).

4. The molecular sieve dehydration unit of claim 2 wherein, The second dehydration device includes a middle conical screen (11) fixed in the tank (1), the lower pipe (9) penetrates the upper porous plate (10) and the middle conical screen (11), the tank (1) between the middle conical screen (11) and the upper porous plate (10) is filled with molecular sieve, the upper end of the second drain pipe (16) is fixedly connected with the lower end of the middle conical screen (11), the second drain pipe (16) is partially communicated with the tank (1) between the middle conical screen (11) and the upper porous plate (10), and the molecular sieve between the middle conical screen (11) and the upper porous plate (10) can be discharged through the second drain pipe (16).

5. The molecular sieve dehydration unit of claim 4 wherein, The third dehydration device includes a lower conical screen (13) fixed in the tank (1), and the tank (1) between the lower conical screen (13) and the lower porous plate (12) is filled with molecular sieve.

6. The molecular sieve dehydration unit of claim 1 wherein, The third row pipe (17) lower end detachable fixed sealing connection has upper seal ring (18), second row pipe (16) lower end penetrates upper seal ring (18), and second row pipe (16) is detachable fixed sealing connection with upper seal ring (18);Second seal plate (20) lower end detachable fixed sealing connection has lower seal ring (19), and first row pipe (15) penetrates lower seal ring (19), and first row pipe (15) is detachable fixed sealing connection with lower seal ring (19);First row pipe (15) lower end detachable fixed sealing connection has seal plate (20).

7. The molecular sieve dehydration unit of claim 3 wherein, The inner wall of the tank body (1) is fixed with a liquid level sensor (8), which is located between the overflow hole (5) and the lower end of the inner cylinder (4). An electromagnetic valve is installed on the inlet pipe (2). The electromagnetic valve, power supply, liquid level sensor (8) and controller are electrically connected.

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