Horizontal pipe continuous cooking system

Abstract

The invention provides a transverse pipe continuous cooking system which comprises a hydraulic grass chopper, a dewatering screw, a conveying screw, a feeding screw, a T-shaped pipe and transverse cooking pipes connected in series, the hydraulic grass chopper, the dewatering screw, the conveying screw, the feeding screw and the T-shaped pipe are sequentially connected, a grass chopping assembly is arranged at the bottom in the hydraulic grass chopper, and an impurity removing assembly is arranged on the upper portion in the hydraulic grass chopper. A detachable radial cutting assembly is arranged between the impurity removing assembly and the grass chopping assembly, a steam exhaust port of the transverse cooking pipe is connected with an inner cavity of the conveying screw, and an exhaust port is formed in the conveying screw. The discharged steam is used for pre-steaming the grass pieces, waste heat is recycled, and the cost is reduced; meanwhile, in the hydraulic grass chopper, through the arrangement of the impurity removal assembly, impurities such as broken stones and metal are removed, the equipment cost is saved, and the working procedures are shortened.

Description

Technical Field

[0001] This invention relates to the field of papermaking technology, and in particular to a horizontal tube continuous cooking system. Background Technology

[0002] In the papermaking industry, the horizontal tube continuous cooking system includes a wet preparation section and a continuous cooking section. It mainly consists of a debris separator, a hydraulic straw crusher, a dewatering screw, a conveying screw, a feeding screw, a T-tube, a cooking tube, a spray pan, etc., connected in sequence. It is used for pulping wheat straw, rice straw, reeds, stalks, bagasse, cotton stalks, grass, palm fiber, bamboo chips, and wood chips.

[0003] The following problems mainly exist in the use of horizontal tube continuous cooking systems: 1. The hay often contains heavy debris such as gravel and metal. If it is fed directly into the hydraulic hay shredder, it can easily damage the cutting blades. Usually, a debris separator is used to remove the debris from the hay first, which increases the process and equipment costs. 2. Hydraulic grass shredders are relatively large, such as 90m². 3 60m 3 The spheres are hydraulically transported forage, and the forage is crushed by high-speed rotating cutting blades. However, relying solely on cutting blades to crush the forage is not efficient enough. 3. The horizontal cooking tube is usually equipped with a steam vent to recover heat and facilitate the cooking of straw. Summary of the Invention

[0004] This invention proposes a horizontal tube continuous steaming system that uses the discharged steam to pre-steam the straw chips, recovering waste heat and reducing costs. At the same time, the hydraulic straw shredder is equipped with a debris removal component to remove impurities such as gravel and metal, saving equipment costs and shortening the process.

[0005] The technical solution of the present invention is implemented as follows: a horizontal tube continuous cooking system includes a hydraulic straw shredder, a dewatering screw, a conveying screw, a feeding screw, a T-shaped pipe and a series of horizontal cooking pipes connected in sequence. A straw shredding component is provided at the bottom of the hydraulic straw shredder, and a dirt removal component is provided at the top of the hydraulic straw shredder. A detachable radial cutting component is provided between the dirt removal component and the straw shredding component. The exhaust port of the horizontal cooking pipe is connected to the inner cavity of the conveying screw, and an exhaust port is provided on the conveying screw.

[0006] Furthermore, the hydraulic grass shredder includes a spherical shell, with a receiving frame fixed in the upper part of the spherical shell. An overflow channel is provided on the upper edge of the receiving frame. A feed pipe and a water inlet pipe are provided on the top of the spherical shell. The lower end of the feed pipe extends to the bottom of the receiving frame, and the lower end of the water inlet pipe extends to the top of the receiving frame and is connected to the spraying assembly.

[0007] Furthermore, the spraying assembly includes a ring of downward-facing spray heads arranged circumferentially along the feed pipe, with the spray heads spaced apart from the overflow channel.

[0008] Furthermore, the radial cutting assembly includes horizontal cutting lines spaced vertically, the horizontal cutting lines being staggered circumferentially, and the ends of the horizontal cutting lines being detachably connected to the spherical housing via a connecting assembly.

[0009] Furthermore, the connecting assembly includes a connecting seat, which is fixed to the inner wall of the spherical shell. The connecting seat is provided with a connecting through hole, and a screw is fixed to the end of the horizontal cutting line. The screw passes through the connecting through hole and is screwed with a locking nut.

[0010] Furthermore, the bottom of the receiving frame is tapered, and a waste discharge pipe is provided on the lower side of the tapered end. The waste discharge pipe extends to the outside of the spherical shell and is equipped with a control valve.

[0011] Furthermore, the outlet of the dewatering spiral is connected to the filter tank, and the purified water outlet pipe of the filter tank is connected to the inlet pipe of the hydraulic grass shredder.

[0012] The beneficial effects of this invention are: This invention connects the steam vent of the transverse cooking tube to the inner cavity of the conveying screw, using the discharged steam to pre-cook the straw, recovering waste heat and reducing costs. At the same time, the pre-cooked straw is also beneficial for subsequent cooking.

[0013] The impurity removal component of this invention, through the cooperation of the receiving frame, the feed pipe and the spraying component, extends the time that the grass is in the receiving frame. Through water jet agitation, the grass is fully dispersed, thereby separating heavier impurities such as gravel and metal from the grass as much as possible. The heavier impurities sink to the bottom, preventing gravel and metal from entering the spherical shell and damaging the cutting tool. At the same time, there is no need to set up a separate impurity separator, saving equipment costs and shortening the process.

[0014] The radial cutting component of the present invention, through the setting of horizontal cutting lines, cuts grass covering the middle and edge of the spherical shell, and improves the efficiency of grass cutting in conjunction with the cutting blade; moreover, the horizontal cutting lines are detachably connected to the spherical shell through a connecting component. The connecting component has a simple structure, which only requires passing the end of the horizontal cutting line through the connecting through hole and screwing in the locking nut, making it easy to install and remove the horizontal cutting line. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of a hydraulic grass shredder; Figure 3 for Figure 2 A magnified view of part A in the image; Figure 4 This is a schematic diagram of the structure for connecting through holes.

[0017] 1. Hydraulic grass shredder; 2. Dewatering screw; 3. Conveying screw; 4. Feeding screw; 5. T-shaped pipe; 6. Horizontal cooking pipe; 7. Spherical shell; 8. Rotating shaft; 9. Cutting blade; 10. Discharge pipe; 11. Grass chip pump; 12. Receiving frame; 13. Conical end; 14. Waste discharge pipe; 15. Overflow channel; 16. Feed pipe; 17. Water inlet pipe; 18. Spray head; 19. Horizontal cutting line; 20. Connecting seat; 21. Connecting through hole; 22. Locking nut; 23. Filter tank; 24. Exhaust port; 25. Exhaust port. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1-2 As shown, a horizontal continuous cooking system includes a hydraulic straw shredder 1, a dewatering screw 2, a conveying screw 3, a feeding screw 4, a T-shaped pipe 5, and a series of horizontal cooking pipes 6 connected in sequence. The hydraulic straw shredder 1 includes a spherical shell 7, with a straw shredding assembly at the bottom of the shell 7. The straw shredding assembly includes a rotating shaft 8, with a cutting blade 9 fixed at the top of the shaft 8. The bottom of the shaft 8 rotates through the spherical shell 7 via a bearing and is connected to a motor. The rotating shaft 8 is driven to rotate by the motor, which in turn drives the cutting blade 9 to rotate at high speed, shredding the straw. A discharge pipe 10 is fixed at the lower end of the shell 7, and the discharge pipe 10 is connected to the dewatering screw 2 via a straw pump 11. This part of the structure is in the current technology.

[0020] A cleaning assembly is provided in the upper part of the spherical shell 7. The cleaning assembly includes a receiving frame 12, which is fixed in the upper part of the spherical shell 7. The bottom of the receiving frame 12 is a conical end 13. A discharge pipe 14 is fixed on the lower side of the conical end 13. The discharge pipe 14 extends to the outside of the spherical shell 7 and is connected to a control valve. An overflow channel 15 is provided on the upper edge of the receiving frame 12. The spherical shell 7 communicates with the receiving frame 12 through the overflow channel 15. A feed pipe 16 and a water inlet pipe 17 are fixed on the top of the spherical shell 7. The lower end of the feed pipe 16 extends to the bottom of the receiving frame 12. The lower end of the water inlet pipe 17 extends to the top of the receiving frame 12 and is connected to a spraying assembly. The spraying assembly includes a ring of downward-facing spray heads 18, which are arranged circumferentially along the feed pipe 16. The spray heads 18 are spaced apart from the overflow channel 15.

[0021] The hay is fed to the bottom of the receiving frame 12 through the feed pipe 16. Because the hay is light, it spreads out and rises in the water. The water inlet pipe 17 sprays water onto the rising hay through the spray head 18. On the one hand, it suppresses the hay and slows down its rising rate. On the other hand, it agitates the water and makes the hay spread out fully, so as to separate heavier debris such as gravel and metal from the hay as much as possible. The heavier debris sinks to the bottom. When it is necessary to remove debris, the control valve can be opened. The dispersed hay spreads to the edge of the receiving frame 12 and rises. Finally, it enters the spherical shell 7 through the overflow channel 15.

[0022] A detachable radial cutting component is provided inside the spherical housing 7 between the debris removal component and the grass shredding component. The radial cutting component includes horizontal cutting lines 19 arranged at vertical intervals. The horizontal cutting lines 19 are staggered in the circumferential direction and are arranged radially along the cross-sectional circle. The ends of the horizontal cutting lines 19 are detachably connected to the spherical housing 7 through a connecting component.

[0023] like Figure 3 and 4 As shown, the connecting assembly includes a connecting seat 20, which is welded and fixed to the inner wall of the spherical shell 7. The connecting seat 20 has a connecting through hole 21. A screw is fixed to the end of the horizontal cutting wire 19, passing through the connecting through hole 21 on the same side and screwed with a locking nut 22. The horizontal cutting wire 19 is a metal wire that can be wound up, facilitating loading and unloading without space limitations. By rotating the locking nuts 22 at both ends, the horizontal cutting wire 19 is brought to a tensioned state. To remove the horizontal cutting wire 19, simply unscrew the locking nuts 22.

[0024] After impurities are removed, the straw enters the spherical shell 7. When the cutting blade 9 is driven by a motor to rotate at high speed, it cuts the straw into straw flakes. The straw flakes are discharged through the discharge pipe 10 and the straw flake pump 11. When the cutting blade 9 rotates at high speed, it also drives the water and straw inside the spherical shell 7 to rotate at high speed. When the straw rotates at high speed and hits the horizontal cutting line 19, it is cut off, thus improving the cutting efficiency of the straw.

[0025] like Figure 1 As shown, the outlet of the dewatering spiral 2 is connected to the filter tank 23. The filter tank 23 filters and purifies the dewatered water. The clean water outlet pipe of the filter tank 23 is connected to the inlet pipe 17 of the hydraulic grass shredder 1, which facilitates water recycling and saves water.

[0026] The steam vent 24 of the transverse cooking pipe 6 is connected to the inner cavity of the conveying screw 3. The conveying screw 3 is provided with a vent 25. The hot steam discharged from the transverse cooking pipe 6 is introduced into the conveying screw 3 to preheat and exhaust the straw after water removal, which is beneficial for the subsequent cooking of the straw.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A horizontal continuous cooking system, comprising a hydraulic straw shredder, a dewatering screw, a conveying screw, a feeding screw, a T-shaped pipe, and a series-connected horizontal cooking pipe, wherein a straw shredding assembly is provided at the bottom of the hydraulic straw shredder, characterized in that: The upper part of the hydraulic straw shredder is equipped with a debris removal component. A detachable radial cutting component is installed between the debris removal component and the straw shredding component. The exhaust port of the transverse cooking pipe is connected to the inner cavity of the conveying screw, and an exhaust port is provided on the conveying screw.

2. The horizontal tube continuous cooking system according to claim 1, characterized in that: The hydraulic grass shredder includes a spherical shell, with a receiving frame fixed in the upper part of the spherical shell. An overflow channel is provided on the upper edge of the receiving frame. A feed pipe and a water inlet pipe are provided on the top of the spherical shell. The lower end of the feed pipe extends to the bottom of the receiving frame, and the lower end of the water inlet pipe extends to the top of the receiving frame and is connected to the spraying assembly.

3. The horizontal tube continuous cooking system according to claim 2, characterized in that: The spraying assembly includes a ring of downward-facing spray heads arranged circumferentially along the feed pipe, with the spray heads spaced apart from the overflow channel.

4. The horizontal tube continuous cooking system according to claim 1, characterized in that: The radial cutting assembly includes horizontal cutting lines spaced vertically, which are staggered circumferentially, and the ends of the horizontal cutting lines are detachably connected to the spherical shell via a connecting assembly.

5. A horizontal tube continuous cooking system according to claim 4, characterized in that: The connecting assembly includes a connecting seat, which is fixed to the inner wall of the spherical shell. The connecting seat has a connecting through hole, and a screw is fixed to the end of the horizontal cutting line. The screw passes through the connecting through hole and is screwed with a lock nut.

6. A horizontal tube continuous cooking system according to claim 2 or 3, characterized in that: The bottom of the receiving frame is tapered, and a waste discharge pipe is provided on the lower side of the tapered end. The waste discharge pipe extends to the outside of the spherical shell and is equipped with a control valve.

7. A horizontal tube continuous cooking system according to claim 2, characterized in that: The outlet of the dewatering screw is connected to the filter tank, and the clean water outlet pipe of the filter tank is connected to the inlet pipe of the hydraulic grass shredder.

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