A discharge device

Abstract

The utility model provides a kind of discharging device, it is related to pressure vessel discharging technical field, the discharging device includes: tee pipe, with first end, second end and third end;Screw conveying part, the screw conveying part passes through the second end and third end and and the first end is communicated;Transmission shaft, one end of the transmission shaft and one end of the screw conveying part are connected;And sealing assembly, the transmission shaft passes through the sealing assembly, the sealing assembly includes bearing seat, bearing cover, gland, bearing, oil seal and sealing ring, the discharging device can realize the continuous discharging of furfural residue and ensure good airtightness.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel discharge technology, specifically to a discharge device. Background Technology

[0002] In furfural production, corn cob fragments react with dilute sulfuric acid under high temperature and pressure in a hydrolysis reactor to form granular furfural residue. This residue is not easily flowable and exhibits bridging. Current furfural residue discharge methods are insufficient for continuous production, resulting in low production efficiency. Furthermore, existing discharge devices are inadequate for effectively sealing aldehyde gas within the system. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a discharge device that can realize continuous discharge of furfural residue, thereby improving production efficiency and the safety and stability of the system.

[0004] To achieve the above and other objectives, this utility model provides a discharge device comprising:

[0005] A three-way pipe has a first end, a second end, and a third end;

[0006] A spiral conveyor, which passes through the second end and the third end and communicates with the first end;

[0007] A drive shaft, one end of which is connected to one end of the screw conveyor;

[0008] The transmission shaft passes through the sealing assembly, which includes a bearing housing, a bearing cover, a pressure cap, a bearing, an oil seal, and a sealing ring. One end of the bearing housing is connected to the bearing cover, and the other end of the bearing housing is connected to the pressure cap and the second end of the tee pipe. The oil seal and the sealing ring are disposed between the bearing cover, the pressure cap, and the transmission shaft. The bearing is located in the cavity formed by the bearing housing, the bearing cover, and the pressure cap, and is sleeved on the transmission shaft. The bearing housing has an oil inlet and an oil outlet on its side wall.

[0009] In one embodiment, the bearing includes a first bearing, a second bearing, and a third bearing, wherein the first bearing is located near the bearing cap, the second bearing is located near the pressure cap, and the third bearing is located between the first bearing and the second bearing.

[0010] In one embodiment, the oil seal includes a first oil seal located within the bearing cover and a second oil seal located within the gland, and the sealing ring includes a first sealing ring located within the bearing cover and a second sealing ring located within the gland.

[0011] In one embodiment, a retaining ring is provided on the outer side of the first oil seal, a first retaining ring is provided between the second bearing and the second oil seal, and a second retaining ring is provided between the first bearing and the third bearing.

[0012] In one embodiment, a spring is provided inside the bearing cover on the side near the first bearing.

[0013] In one embodiment, the discharge device includes a first connecting pipe, through which the drive shaft passes. One end of the first connecting pipe is connected to the bearing seat, and the other end of the first connecting pipe is connected to the second end of the tee pipe.

[0014] In one embodiment, a dustproof ring is provided on the end face where the first connecting pipe connects to the second end of the tee pipe.

[0015] In one embodiment, the discharge device includes a second connecting pipe and a third connecting pipe connected together, one end of the second connecting pipe being connected to the third end of the tee pipe, and one end of the screw conveyor extending into the third connecting pipe.

[0016] In one embodiment, the discharge device includes a feeding assembly, the feeding assembly includes a feeding box, the feeding box is provided with a bushing, the feeding box has a feeding port, one end of the feeding box is connected to the third connecting pipe, and one end of the bushing is connected to the third connecting pipe.

[0017] In one embodiment, the discharge device includes an anti-backflow component, which includes a plug, a shaft, and a hydraulic cylinder. The other end of the bushing is provided with the plug, which is located inside the discharge box. The plug is connected to one end of the shaft, and the other end of the shaft is connected to the hydraulic cylinder.

[0018] This utility model provides a discharge device, which has the following advantages compared with the prior art: This utility model can effectively improve the safety and production efficiency of furfural production by setting a spiral conveyor and an oil seal sealing assembly. Attached Figure Description

[0019] Figure 1 The image shown is a cross-sectional view of the discharge device of this utility model.

[0020] Figure 2 The image shown is a cross-sectional view of the sealing assembly of this utility model.

[0021] Figure 3 The diagram shown is an exploded view of the feeding assembly and the anti-backflow assembly of this utility model.

[0022] Figure label:

[0023] 1-Tee pipe;

[0024] 2-Drive shaft, 201-Protrusion;

[0025] 3-Sealing assembly, 301-Bearing cap, 302-Bearing housing, 3021-Oil inlet, 3022-Oil outlet, 303-Gland, 304-First bearing, 305-Second bearing, 306-Third bearing, 307-Retaining ring, 308-First oil seal, 309-First sealing ring, 310-First retaining ring, 311-Second oil seal, 312-Second sealing ring, 313-Spring, 314-Second retaining ring;

[0026] 4-First connecting pipe;

[0027] 5-Screw conveyor, 501-Slot;

[0028] 6-Second connecting pipe, 61-First pipe sleeve, 62-First pipe shell;

[0029] 7-Third connecting pipe, 71-Second pipe sleeve, 72-Second pipe shell;

[0030] 8-Feeding assembly, 81-Bushing, 82-Feeding box, 821-Feeding port;

[0031] 9-Anti-backflow assembly, 91-Plug, 92-Shaft, 93-Hydraulic cylinder, 94-Fixing component;

[0032] 10-Connector;

[0033] 100 - Motor, 200 - Gearbox, 300 - Sealing gasket, 400 - Dust ring. Detailed Implementation

[0034] Please see Figures 1 to 3 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0035] like Figure 1As shown, this utility model provides a discharge device that can be used to continuously and stably discharge furfural residue produced from the production of furfural from corn cob sulfuric acid.

[0036] The discharge device includes a three-way pipe 1, the first end of which can be connected to the discharge port of the hydrolysis reactor via a valve. A spiral conveyor 5 is disposed inside the three-way pipe 1, passing through the second and third ends of the three-way pipe 1. One end of the spiral conveyor 5 communicates with the inner cavity of the three-way pipe 1. The spiral conveyor 5 may include an auger.

[0037] The second end of the three-way pipe 1 is connected to a drive shaft 2. One end of the drive shaft 2 can be connected to one end of the reducer 200, and the other end of the reducer 200 is connected to a motor 100.

[0038] The transmission assembly includes a sealing assembly 3, through which the transmission shaft 2 passes. The sealing assembly 3 includes a bearing cover 301, one end of which is connected to one end of a bearing seat 302, and the other end of the bearing seat 302 is connected to a pressure cap 303. An oil inlet 3021 and an oil outlet 3022 may be provided on the side wall of the bearing seat 302 to facilitate the entry and exit of sealing oil.

[0039] A first oil seal 308 and a first sealing ring 309 are provided between the bearing cover 301 and the drive shaft 2. A retaining ring 307 may be provided on the outer end face of the bearing cover 301, and the retaining ring 307 is located on one side of the first oil seal 308. The retaining ring 307 can prevent the ingress of dust and other contaminants. The oil seal of this utility model is a high-pressure oil seal, such as a high-pressure rotary oil seal, which is a standard seal for rotating shafts, mainly used to prevent oil leakage and the intrusion of external impurities, and is suitable for high-pressure, high-speed or high-temperature operating conditions.

[0040] like Figure 2 As shown, a second oil seal 311 and a second sealing ring 312 are provided between the pressure cap 303 and the drive shaft 2. A first retaining ring 310 is provided between the second bearing 305 and the second oil seal 311. A second retaining ring 314 may be provided between the first bearing 304 and the third bearing 306. A spring 313 is provided on the side of the first bearing 304 away from the second retaining ring 314, and the spring 313 may be disposed inside the bearing cover 301.

[0041] A first bearing 304 and a second bearing 305 may be disposed within the cavity formed by the bearing housing 302, the bearing cover 301, and the pressure cap 303. The first bearing 304 is located near the bearing cover 301, and the second bearing 305 is located near the pressure cap 303. In some embodiments, the sealing assembly 3 further includes a third bearing 306, which is located between the first bearing 304 and the second bearing 305. The third bearing 306 may be a thrust bearing. All bearings are mounted on the transmission shaft 2.

[0042] like Figure 2 As shown, the discharge device includes a first connecting pipe 4, one end of which is connected to the bearing seat 302, and the other end of which is connected to the second end of the tee pipe 1. The drive shaft 2 passes through the first connecting pipe 4. The bearing seat 302 is connected to a pressure cap 303, which then extends into the first connecting pipe 4. Finally, the first connecting pipe 4 is connected to the tee pipe 1. The pressure cap 303 is at least partially inserted into the first connecting pipe 4. A dustproof ring 400 may be provided on the end face where the first connecting pipe 4 and the tee pipe 1 connect.

[0043] One end of the spiral conveyor 5 has a groove 501, and one end of the drive shaft 2 has a protrusion 201. The protrusion 201 and the groove 501 cooperate to enable the drive shaft 2 to drive the spiral conveyor 5.

[0044] like Figure 1 As shown, the third end of the three-way pipe 1 is connected to the second connecting pipe 6, one end of the spiral conveyor 5 is connected to the drive shaft 2, and the other end of the spiral conveyor 5 passes through the second connecting pipe 6.

[0045] One end of the second connecting pipe 6 is connected to the third end of the tee pipe 1, and the other end of the second connecting pipe 6 is connected to one end of the third connecting pipe 7. The second connecting pipe 6 includes an inner first sleeve 61 and a first shell 62 located outside the first sleeve 61. The third connecting pipe 7 includes a second sleeve 71 and a second shell 72 located outside the second sleeve 71. The presence of the sleeve can prevent corrosion.

[0046] The connecting seat 10 is clamped between the third connecting pipe 7 and the second connecting pipe 6, and the end of the spiral conveyor 5 extends into the third connecting pipe 7.

[0047] like Figure 3As shown, the discharge device includes a discharge assembly 8, which is connected to the other end of the third connecting pipe 7. The discharge assembly 8 includes a discharge box 82 and a bushing 81 disposed in the discharge box 82. The bottom of the discharge box 82 has a discharge port 821.

[0048] like Figure 1 As shown, the discharge device includes an anti-backflow component 9, which includes a plug 91, a shaft 92, and a hydraulic cylinder 93. One end of the bushing 81 is connected to the third connecting pipe 7, and the other end of the bushing 81 is provided with the plug 91. One end of the plug 91 can cover the end face of the bushing 81, and the plug 91 is located inside the discharge box 82.

[0049] The other end of the plug 91 is connected to one end of the shaft 92, and the other end of the shaft 92 is connected to a hydraulic cylinder 93. The hydraulic cylinder 93 can be fixed to one side of the feeding box 82 by a fixing member 94.

[0050] The connection described in this utility model can be a bolt connection, and the connection can be sealed with a sealing gasket 300.

[0051] This invention addresses the issue that furfural residue is discharged under pressure within the hydrolysis reactor. During discharge, the furfural residue mixes with high-temperature steam in a jet-like manner, generating noise and posing a safety hazard. Therefore, an anti-backflow component 9 is incorporated. During operation, the screw conveyor 5 rotates, forcefully pushing the material (furfural residue) forward to form a "material plug." Under the squeezing action of the screw, the material is compressed very densely by the time it reaches the plug 91, forming a solid "material plug." This continuously advancing "material plug" generates a significant axial thrust, which overcomes the holding force applied to the plug 91 by the hydraulic cylinder 93, creating a gap in the plug 91. The compressed material is then continuously and smoothly discharged from this gap.

[0052] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A discharge device, comprising a drive shaft, characterized in that: The discharge device includes A three-way pipe has a first end, a second end, and a third end; A spiral conveyor, which passes through the second end and the third end and communicates with the first end; A drive shaft, one end of which is connected to one end of the screw conveyor; The transmission shaft passes through the sealing assembly, which includes a bearing housing, a bearing cover, a pressure cap, a bearing, an oil seal, and a sealing ring. One end of the bearing housing is connected to the bearing cover, and the other end of the bearing housing is connected to the pressure cap and the second end of the tee pipe. The oil seal and the sealing ring are respectively disposed between the bearing cover and the pressure cap and the transmission shaft. The bearing is located in the cavity formed by the bearing housing, the bearing cover, and the pressure cap, and is sleeved on the transmission shaft. The bearing housing has an oil inlet and an oil outlet on its side wall.

2. The discharge device according to claim 1, characterized in that: The bearing includes a first bearing, a second bearing, and a third bearing. The first bearing is located near the bearing cap, the second bearing is located near the pressure cap, and the third bearing is located between the first bearing and the second bearing.

3. The discharge device according to claim 2, characterized in that: The oil seal includes a first oil seal located inside the bearing cover and a second oil seal located inside the gland, and the sealing ring includes a first sealing ring located inside the bearing cover and a second sealing ring located inside the gland.

4. The discharge device according to claim 3, characterized in that: A retaining ring is provided on the outer side of the first oil seal, a first retaining ring is provided between the second bearing and the second oil seal, and a second retaining ring is provided between the first bearing and the third bearing.

5. The discharge device according to claim 2, characterized in that: A spring is provided inside the bearing cover on the side closest to the first bearing.

6. The discharge device according to claim 1, characterized in that: The discharge device includes a first connecting pipe, through which the drive shaft passes. One end of the first connecting pipe is connected to the bearing seat, and the other end of the first connecting pipe is connected to the second end of the tee pipe.

7. The discharge device according to claim 6, characterized in that: A dustproof ring is provided on the end face where the first connecting pipe connects to the second end of the tee pipe.

8. The discharge device according to claim 6, characterized in that: The discharge device includes a second connecting pipe and a third connecting pipe connected together. One end of the second connecting pipe is connected to the third end of the three-way pipe, and one end of the screw conveyor extends into the third connecting pipe.

9. The discharge device according to claim 8, characterized in that: The discharge device includes a feeding assembly, which includes a feeding box, a bushing inside the feeding box, and a feeding port inside the feeding box. One end of the feeding box is connected to the third connecting pipe, and one end of the bushing is connected to the third connecting pipe.

10. The discharge device according to claim 9, characterized in that: The discharge device includes an anti-backflow component, which includes a plug, a shaft, and a hydraulic cylinder. The other end of the bushing is provided with the plug, which is located inside the discharge box. The plug is connected to one end of the shaft, and the other end of the shaft is connected to the hydraulic cylinder.

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