Automatic relief valve for easy crystallization discharge

Abstract

The application discloses an automatic relief valve for easy crystallization discharge, which comprises a feeding pipe cylinder, a motor, a speed reduction gear train, a transmission screw rod, a transmission nut and a crystallization blocking prevention device, one end of the motor is connected with one end of the speed reduction gear train, and is used for driving the movement of the speed reduction gear train, the other end of the speed reduction gear train is connected with the transmission nut, and then the movement of the transmission nut is driven by the movement of the speed reduction gear train, the inside of the transmission nut is connected with the outside of one end of the transmission screw rod, the reciprocating movement of the transmission screw rod is driven by the torque transmission of the screw pair, and then the discharge opening is opened and closed, and the other end of the transmission screw rod is connected with the crystallization blocking prevention device. The application can solve the problem of easy blockage of the tank opening, prevent the damage of the parts in the tank, improve the efficiency and save time and labor.

Description

Technical Field

[0001] This invention relates to an automatic discharge valve for easily crystallizing substances, and particularly to an automatic discharge valve for easily crystallizing substances such as glucose. Background Technology

[0002] Currently, the discharge of easily crystallizing substances from the tanks in the production line mainly relies on manually controlling the up and down movement of a gate to discharge the substances from the tank into a container placed outside the tank. Due to the thickness of the tank, easily crystallizing substances often crystallize and clog the tank opening during discharge. Currently, this is mainly addressed by manually using mechanical tools to knock down the crystals near the tank opening, which is time-consuming and labor-intensive. In addition, there are other components inside the tank, such as the blades for stirring glucose liquid inside the tank, which are relatively close to the tank opening. Knocking down these components can easily damage them. Therefore, a new specialized device is needed to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an automatic discharge valve for discharging easily crystallizing substances from tanks, which can solve the problem of easy blockage at the tank opening, prevent damage to internal components, improve efficiency, and save time and effort.

[0004] The technical solution adopted in this invention is as follows:

[0005] An automatic discharge valve for discharging easily crystallizing substances according to the present invention includes a conveying pipe, a discharge port on the bottom wall of the left side of the conveying pipe, an end cap fixed at the right end of the conveying pipe, an installation hole in the middle of the end cap, a bearing installed in the installation hole, a transmission nut fixed on the left side in the inner ring of the bearing, and a limiting pressure cap pressing against the left wall of the outer ring of the bearing and fixedly connected to the end cap.

[0006] The rotating shaft of the motor, positioned horizontally, is connected to the gear shaft of the driving gear of the reduction gear train via a torque limiter. The output gear is fixed to the outer right side of the transmission nut via a fixing device. The power output gear of the reduction gear train meshes with the output gear. A transmission screw, installed horizontally inside the conveying pipe, has its right end passing through the middle hole of the limiting cover and the middle threaded hole of the transmission nut. The transmission screw can move left and right along the middle hole. The transmission screw and the transmission nut form a helical pair. An anti-crystallization plug is inserted into the left end of the conveying pipe and is clearance-fitted to the left end of the pipe. The left end of the transmission screw is fixedly connected to the right wall of the anti-crystallization plug via a flange. The flange is clearance-fitted to the inner wall of the conveying pipe. The diameter of the flange is larger than the diameter of the anti-crystallization plug. The anti-crystallization plug can move left and right inside the conveying pipe under the drive of the transmission screw to open or close the left end of the pipe and the discharge port.

[0007] The beneficial effects of this invention are:

[0008] 1) This invention achieves the reciprocating motion of the transmission screw by driving the reduction gear train and the threaded pair with torque through the motor, thereby completing the opening and closing of the unloading port.

[0009] 2) The use of anti-crystallization plugs can prevent easily crystallizing substances from crystallizing at the tank opening.

[0010] In summary, the advantages of this invention are: it can solve the problem of easy blockage at the can opening, prevent damage to the internal components of the can, and improve efficiency, saving time and effort. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an automatic relief valve for discharging easily crystallizing substances;

[0012] Figure 2 This is a schematic diagram of an automatic relief valve for discharging easily crystallizing substances in the closed position;

[0013] Figure 3 This is a schematic diagram of an automatic discharge valve for easily crystallizing substances in a half-open position;

[0014] Figure 4 This is a schematic diagram of an automatic relief valve for discharging easily crystallizing substances in the fully open position;

[0015] Figure 5 This is a schematic diagram of an automatic relief valve for discharging easily crystallizing substances in the cleaning position. Detailed Implementation

[0016] The following describes in detail an automatic relief valve for discharging easily crystallizing substances, with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 An automatic discharge valve for discharging easily crystallizing substances is shown, comprising a feed pipe 8, a discharge port 12 on the bottom wall of the left side of the feed pipe 8, an end cap fixed at the right end of the feed pipe 8, a mounting hole in the middle of the end cap, a bearing installed in the mounting hole, a transmission nut 5 fixed to the inner ring of the bearing on its left outer wall, and a limiting pressure cap 6 pressing against the left wall of the outer ring of the bearing and fixedly connected to the end cap. The limiting pressure cap is used to restrict the operating position of the anti-crystallization plug 9.

[0018] The rotating shaft of the horizontally positioned motor 1 is connected to the gear shaft of the driving gear of the reduction gear train 3 via a torque limiter 2. The torque limiter 2 is used to limit the position of the transmission screw 4. The output gear 13 of the reduction gear train 3 is fixed to the outer right side of the transmission nut 5 by a fixing device. The right end of the transmission screw 4, which is installed horizontally inside the conveying pipe 8, passes through the middle hole of the limiting cover 6 and the middle threaded hole of the transmission nut 5. The transmission screw 4 can move left and right along the middle hole. The transmission screw 4 and the transmission nut 5 form a helical pair. An anti-crystallization plug 9 is inserted into the left end of the conveying pipe 8 and is clearance-fitted with the left end of the pipe. The left end of the transmission screw 4 is fixedly connected to the right wall of the anti-crystallization plug 9 via a flange. The flange is clearance-fitted with the inner wall of the conveying pipe 8. The diameter of the flange is larger than the diameter of the anti-crystallization plug 9. The anti-crystallization plug 9 can move left and right inside the conveying pipe 8 under the drive of the transmission screw 4 to open or close the left end of the pipe and the discharge port 12.

[0019] Preferably, the fixing device includes a compression spring 14 on the transmission nut 5 between the right wall of the bearing and the output gear 13. The output gear 13 can move along the outer wall of the transmission nut. A gear pressure plate 17 is fixed (can be fixed by screws, etc.) on the right wall of the transmission nut 5. The gear pressure plate 17 is fixedly connected to the hand crank handle. Multiple push rod supports 15 are fixed by screws in the same circumferential direction of the gear pressure plate 17. Push rods 16, which are arranged one-to-one with the push rod supports 15, pass through the through holes on the push rod supports 15 and the gear pressure plate 17 in the horizontal direction and abut against the right end face of the output gear 13 to limit the running position of the output gear 13. Vertical pin holes are opened on each push rod 16 and the push rod support 15 connected to it. When the push rod 16 is pushed to the appropriate position and the spring 14 obtains sufficient preload, the pin 18 passes through the vertical pin holes on each push rod 16 and the push rod support 15 to fix them together. At this time, the output gear 13 meshes with the gear of the reduction gear train 3. More preferably, a limiting device is fixed on the transmission nut 5 between the gear pressure plate 17 and the right wall of the output gear 13 to limit the output gear 13. The limiting device can be a limiting ring or the like.

[0020] Preferably, the transmission screw 4 is covered with a PP folded duct nylon cloth 7. The right end of the PP folded duct nylon cloth 7 is fixedly connected to the limiting cover 6 and the left end is fixedly connected to the flange to protect the transmission screw.

[0021] Preferably, a spray nozzle 10 is provided on the top wall of the conveying pipe 8 on the right side. The spray nozzle 10 is used to connect to a spray rinsing device for rinsing the inside of the conveying pipe.

[0022] Preferably, a two-piece inner and outer ball valve 11 is installed on the bottom cylinder wall on the left side of the discharge port 12 for pressure relief during operation.

[0023] The method of using this device is as follows:

[0024] When motor 1 starts, it drives the reduction gear train 3 to move, which in turn drives the output gear 13 to move. The output gear 13 then drives the transmission nut 5 to move, which in turn drives the transmission screw 4 to reciprocate. The transmission screw 4 then drives the anti-crystallization plug 9 to reciprocate, and the anti-crystallization plug 9 is in a state of... Figures 2-5 At different positions, the automatic relief valve for discharging easily crystallizing substances can be opened, partially opened, fully opened, and cleaned. When the piston on the transmission screw 4 moves to the position of the limit cover 6, as the torque increases rapidly, the pre-set torque limiter will automatically make the motor 1 idle, realizing the overload protection control function and protecting the safe operation of the entire equipment.

[0025] This device features a manual operation mechanism in case of power failure. In the event of a power outage or other emergencies, removing pin 18 will cause the compressed spring 14 to push the output gear 13 to the right, disengaging it from the gear mesh. The hand crank on the gear plate then moves the transmission nut 5, which in turn drives the transmission screw 4 in a reciprocating motion. The transmission screw 4 then drives the anti-crystallization plug 9 in a manual reciprocating motion. After manual operation, the push rod 16 is returned to its initial position and secured with pin 18.

[0026] When the anti-crystallization plug 9 is in such a state Figure 2 When the position shown is indicated, the automatic relief valve is in the closed state.

[0027] When the anti-crystallization plug 9 is in such a state Figure 3 When the position shown is reached, the automatic discharge valve is in a half-open state, and the material entering the conveying pipe 8 from the left end port can be slowly discharged through the discharge port 12.

[0028] When crystallization blockage 9 is in such a state Figure 4 When the position shown is indicated, the automatic discharge valve is fully open, allowing for rapid and large-scale discharge of materials.

[0029] When crystallization blockage 9 is in such a state Figure 5 When the position shown is reached, the automatic discharge valve is in the cleaning position, which allows for cleaning of the inside of the feed cylinder 8.

Claims

1. An automatic relief valve for the discharge of a readily crystallizable substance, characterized in that: It comprises a feeding tube (8), a discharge port (12) is opened on the bottom wall of the left side of the feeding tube, an end cover is fixed on the right end of the feeding tube, a mounting hole is opened in the middle of the end cover, a bearing is mounted in the mounting hole, a transmission nut (5) is fixed on the inner ring of the bearing, the end of a limiting gland (6) is pressed against the left wall of the outer ring of the bearing and is fixed with the end cover; The rotating shaft of the motor (1) arranged in the horizontal direction is connected with the gear shaft of the driving gear of the reduction gear train (3) through the torque limiter (2), the output gear (13) is fixed on the right outer wall of the transmission nut through the fixing device, the power output gear of the reduction gear train is engaged with the output gear, the right end of a transmission screw rod (4) installed in the feeding tube in the horizontal direction passes through the middle hole of the limiting gland and the middle threaded hole of the transmission nut, the transmission screw rod can move left and right along the middle hole, the transmission screw rod and the transmission nut form a screw pair, a crystal blocking plug (9) is inserted into the left end of the feeding tube and is engaged with the left end gap, the left end of the transmission screw rod is fixed with the right wall of the crystal blocking plug through a flange, the flange is engaged with the inner wall of the feeding tube with a gap, the diameter of the flange is larger than that of the crystal blocking plug, the crystal blocking plug can move left and right in the feeding tube under the driving of the transmission screw rod to open or close the left end and the discharge port; the fixing device comprises a compression spring wrapped around the right wall of the bearing and the output gear, the output gear can move along the outer wall of the transmission nut, a gear pressing plate is fixed on the right wall of the transmission nut, the gear pressing plate is fixed with a hand crank, a plurality of jack supports are fixed on the gear pressing plate in the same circumferential direction of the gear pressing plate through screws, jacks pass through the through holes of the jack supports and the gear pressing plate in the horizontal direction and abut against the right end surface of the output gear, vertical pin holes are opened on each of the jacks and the corresponding jack supports, the jacks and the jack supports are fixed through the vertical pin holes, and the output gear is engaged with the power output gear of the reduction gear train.

2. An automatic bleed valve for the discharge of easily crystallizable substances according to claim 1, characterized in that: A limiting device is fixed on the transmission nut between the gear pressing plate and the right wall of the output gear to limit the output gear.

3. An automatic bleed valve for the discharge of a readily crystallisable substance according to claim 1 or 2, characterised in that: PP folded air pipe nylon cloth is wrapped around the transmission screw rod, the right end of the PP folded air pipe nylon cloth is fixed with the limiting gland and the left end is fixed with the flange.

4. An automatic bleed valve for the discharge of readily crystallisable material according to claim 3, characterised in that: A spraying port is opened on the top wall of the right side of the feeding tube, which is used to be connected with a spraying and flushing device.

5. An automatic bleed valve for the discharge of readily crystallisable material according to claim 4, characterised in that: A two-piece inner and outer thread ball valve is installed on the bottom wall of the left side of the discharge port.

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