Wood chip cooking device for pulping
By using a rotating motor to drive the stirring fan blades and heating wires to heat the thermal oil in the wood chip cooking equipment, the problem of low cooking efficiency in the prior art is solved, and efficient cooking of wood chips and uniform processing of materials is achieved.
Patent Information
- Application Number
- CN202421179636.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing wood chip steaming and cooking equipment adopts bottom heating and bottom stirring, resulting in low cooking efficiency and affecting the quality of the slurry.
A wood chip steaming device for pulping is designed, including a cooking bracket, agitating device and a filtering discharge device. The rotating motor drives the stirring fan blade for uniform stirring, the telescopic cylinder adjusts the stirring height, and the heating wire is wrapped around the inner wall of the cooking tank to conduct heat. The oil evenly transfers heat and is equipped with a filtering and discharge device for material separation.
The steaming and cooking efficiency of wood chips is improved, the uniform stirring of materials and the uniform transfer of heat is achieved, the steaming and cooking efficiency is enhanced, and the steaming wood chips are separated from the liquid through the filtering and discharge device.
Smart Images
Figure CN222275081U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of paper preparation, in particular to a wood chip cooking device for pulping. Background Art
[0002] The principle of wood chip cooking is: through the action of high temperature and high pressure, steam diffuses into the wood, so that the lignin, hemicellulose and lignin in the wood are converted into cellulose and hemicellulose, which are then separated and made into pure wood chips. At the same time, the chemical reaction under high temperature and high pressure also helps to eliminate the lignin in the wood, preventing the generation of pigments in the subsequent processing process, which affects the pulp quality. Existing wood chip cooking equipment generally uses bottom heating and bottom stirring to cook wood chips, resulting in low cooking efficiency of wood chips. Utility Model Content
[0003] Purpose of the utility model: The utility model provides a wood chip cooking device for pulping, which can improve the cooking efficiency of wood chips.
[0004] In order to achieve the above object, the technical solution of the utility model is as follows:
[0005] A wood chip cooking device for pulping, comprising a cooking support, a cooking tank is arranged on the cooking support, a stirring device is arranged on the top of the cooking tank, and a filtering and discharging device is arranged at the bottom of the cooking tank;
[0006] The stirring device comprises a door-shaped support frame, a rotating motor is vertically arranged on the door-shaped support frame, a rotating support frame is fixed on the rotor of the rotating motor, a telescopic cylinder is arranged inside the rotating support frame, a plurality of stirring blades are fixed on the piston rod of the telescopic cylinder, and the stirring blades are located inside the cooking tank;
[0007] A feed inclined pipe is provided on the left side of the cooking tank, an exhaust pipe is provided on the right side thereof, a first electric valve is provided on the feed inclined pipe, and a pressure regulating valve is provided on the exhaust pipe;
[0008] A heating device is arranged between the inner and outer walls of the cooking tank.
[0009] As an improvement: a limit groove is provided on the rotating support frame, and two limit clamping blocks are symmetrically provided on the door-type support frame, and the limit groove is rotatably clamped on the limit clamping block.
[0010] As an improvement: the heating device includes a plurality of heating wires, the heating wires are wound around the inner wall of the cooking tank, and heat transfer oil is filled between the inner and outer walls of the cooking tank.
[0011] As an improvement: a first discharge pipe is connected to the bottom of the cooking tank, and a second electric valve is provided on the first discharge pipe.
[0012] As an improvement: the filtering and discharging device comprises a discharging cylinder, in which a filter mesh cylinder is arranged;
[0013] A spiral discharge rod is rotatably arranged inside the filter screen cylinder, a spiral discharge fan blade is arranged on the spiral discharge rod, a spiral discharge motor is arranged on the left side of the discharge cylinder, and a rotor of the spiral discharge motor is connected to the spiral discharge rod;
[0014] A drain pipe is connected to the lower left of the discharge barrel, and the input end of the drain pipe extends to the inside of the discharge barrel. A second discharge pipe is connected to the lower right of the discharge barrel, and the input end of the second discharge pipe extends to the inside of the filter screen barrel.
[0015] A third electric valve is provided on the drainage pipe, and a fourth electric valve is provided on the second discharge pipe.
[0016] In summary, the utility model has the following beneficial effects:
[0017] 1. The rotating motor can drive the stirring blades to rotate back and forth, and the telescopic cylinder can adjust the stirring height of the stirring blades to achieve uniform stirring of the materials in the cooking tank, thereby improving the cooking efficiency of the wood chips;
[0018] 2. The heating wire is wound around the inner wall of the cooking tank. The heating wire heats the heat transfer oil, and the heat transfer oil can evenly transfer the heat generated by the heating wire to the material in the cooking tank, thereby improving the cooking efficiency of the wood chips;
[0019] 3. The filtering and discharging device can filter and separate the cooked wood chips from the cooking liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution in the present practical embodiment, the drawings required for use in the embodiment or the description of the prior art will be briefly introduced below.
[0021] Figure 1 It is a schematic diagram of the overall structure of a wood chip cooking device for pulping;
[0022] Among them: 1. Cooking bracket; 2. Cooking pot; 3. Door-type support frame; 4. Rotating motor; 5. Rotating support frame; 6. Telescopic cylinder; 7. Stirring fan blade; 8. Feeding inclined pipe; 9. Exhaust pipe; 10. First electric valve; 11. Pressure regulating valve; 12. Limiting groove; 13. Limiting block; 14. Heating wire; 15. Heat transfer oil; 16. First discharge pipe; 17. Second electric valve; 18. Discharge barrel; 19. Filter net barrel; 20. Spiral discharge rod; 21. Spiral discharge fan blade; 22. Spiral discharge motor; 23. Drain pipe; 24. Second discharge pipe; 25. Third electric valve; 26. Fourth electric valve. DETAILED DESCRIPTION
[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0024] Please refer to Figure 1 A wood chip cooking device for pulping includes a cooking support 1, a cooking tank 2 is arranged on the cooking support 1, a stirring device is arranged on the top of the cooking tank 2, and a filtering and discharging device is arranged at the bottom;
[0025] The stirring device comprises a door-shaped support frame 3, a rotating motor 4 is vertically downwardly arranged on the door-shaped support frame 3, a rotating support frame 5 is fixed on the rotor of the rotating motor 4, a telescopic cylinder 6 is arranged inside the rotating support frame 5, a plurality of stirring blades 7 are fixed on the piston rod of the telescopic cylinder 6, and the stirring blades 7 are located inside the cooking tank 2;
[0026] In this embodiment, the rotating motor 4 can drive the stirring blade 7 to rotate back and forth, and the telescopic cylinder 6 can adjust the stirring height of the stirring blade 7 to achieve uniform stirring of the material in the cooking tank 2, thereby improving the cooking efficiency of the wood chips.
[0027] A feed inclined pipe 8 is provided on the left side of the cooking tank 2, and an exhaust pipe 9 is provided on the right side thereof. A first electric valve 10 is provided on the feed inclined pipe 8, and a pressure regulating valve 11 is provided on the exhaust pipe 9;
[0028] A heating device is provided between the inner and outer walls of the cooking tank 2 .
[0029] In this embodiment, a limiting groove 12 is provided on the rotating support frame 5, and two limiting blocks 13 are symmetrically provided on the door-shaped support frame 3. The limiting groove 12 is rotatably clamped on the limiting blocks 13, which can improve the rotation stability.
[0030] The heating device includes a plurality of heating wires 14, which are wound around the inner wall of the cooking tank 2, and heat transfer oil 15 is filled between the inner and outer walls of the cooking tank 2. A first discharge pipe 16 is connected to the bottom of the cooking tank 2, and a second electric valve 17 is provided on the first discharge pipe 16. In this embodiment, the heating wires 14 are wound around the inner wall of the cooking tank 2, and the heat transfer oil 15 is heated by the heating wires 14. The heat transfer oil 15 can evenly transfer the heat generated by the heating wires 14 to the material in the cooking tank 2, thereby improving the cooking efficiency of the wood chips.
[0031] The filtering and discharging device includes a discharging barrel 18, in which a filter screen barrel 19 is arranged; a spiral discharging rod 20 is rotatably arranged inside the filter screen barrel 19, and a spiral discharging fan blade 21 is arranged on the spiral discharging rod 20, and a spiral discharging motor 22 is arranged on the left side of the discharging barrel 18, and the rotor of the spiral discharging motor 22 is connected to the spiral discharging rod 20; a drain pipe 23 is connected to the lower left of the discharging barrel 18, and the input end of the drain pipe 23 extends to the inside of the discharging barrel 18, and a second discharging pipe 24 is connected to the lower right of the discharging barrel 18, and the input end of the second discharging pipe 24 extends to the inside of the filter screen barrel 19; a third electric valve 25 is arranged on the drain pipe 23, and a fourth electric valve 26 is arranged on the second discharging pipe 24.
[0032] In this embodiment, the filtering and discharging device can filter and separate the cooked wood chips from the cooking liquid.
[0033] Working principle: open the first electric valve 10, inject the wood chips and cooking liquid into the cooking tank 2 through the feed inclined pipe 8, turn on the heating wire 14 to heat the heat transfer oil 15, and start the rotating motor 4 to drive the stirring blade 7 to rotate. During the rotation process, the stirring height of the stirring blade 7 is adjusted by the telescopic cylinder 6. During the heating process, the pressure in the cooking tank 2 can be adjusted by the pressure regulating valve 11.
[0034] After the cooking is completed, the second electric valve 17 is opened to discharge the cooked material into the interior of the filter screen cylinder 19, and the spiral discharge motor 22 is started to transport the material to the right. During the transportation process, the cooked liquid crystal is discharged from the filter screen cylinder 19 and the drain pipe 23, and the cooked wood chips are discharged from the filter screen cylinder 19 through the second discharge pipe 24.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.
Claims
1. A wood chip cooking device for pulping, characterized in that: It comprises a cooking support, on which a cooking pot is arranged, a stirring device is arranged on the top of the cooking pot, and a filtering and discharging device is arranged on the bottom of the cooking pot; The stirring device comprises a door-shaped support frame, a rotating motor is vertically arranged on the door-shaped support frame, a rotating support frame is fixed on the rotor of the rotating motor, a telescopic cylinder is arranged inside the rotating support frame, a plurality of stirring blades are fixed on the piston rod of the telescopic cylinder, and the stirring blades are located inside the cooking tank; A feed inclined pipe is provided on the left side of the cooking tank, an exhaust pipe is provided on the right side thereof, a first electric valve is provided on the feed inclined pipe, and a pressure regulating valve is provided on the exhaust pipe; A heating device is arranged between the inner and outer walls of the cooking tank.
2. The wood chip cooking device for pulping according to claim 1, characterized in that: A limiting groove is arranged on the rotating support frame, and two limiting clamping blocks are symmetrically arranged on the door-shaped support frame. The limiting groove is rotatably clamped on the limiting clamping blocks.
3. The wood chip cooking device for pulping according to claim 1, characterized in that: The heating device comprises a plurality of heating wires which are wound around the inner wall of the cooking pot, and heat transfer oil is filled between the inner and outer walls of the cooking pot.
4. The wood chip cooking device for pulping according to claim 1, characterized in that: A first discharge pipe is connected to the bottom of the cooking tank, and a second electric valve is arranged on the first discharge pipe.
5. The wood chip cooking device for pulping according to claim 4, characterized in that: The filtering and discharging device comprises a discharging cylinder, in which a filter mesh cylinder is arranged; A spiral discharge rod is rotatably arranged inside the filter screen cylinder, a spiral discharge fan blade is arranged on the spiral discharge rod, a spiral discharge motor is arranged on the left side of the discharge cylinder, and a rotor of the spiral discharge motor is connected to the spiral discharge rod; A drain pipe is connected to the lower left of the discharge barrel, and the input end of the drain pipe extends to the inside of the discharge barrel. A second discharge pipe is connected to the lower right of the discharge barrel, and the input end of the second discharge pipe extends to the inside of the filter screen barrel. A third electric valve is provided on the drainage pipe, and a fourth electric valve is provided on the second discharge pipe.