A cooking tube with kneading seal and anti-blocking feeding

Abstract

The invention discloses a cooking tube with kneading, sealing and anti-blocking feeding, which belongs to the technical field of cooking tubes and comprises a kneading feeding device on the cooking tube; the kneading feeding device comprises a lower shell body, which is composed of a straight cylinder and a conical cylinder connected to the lower end of the straight cylinder; a rotatable variable-diameter feeding spiral is arranged in the conical cylinder of the lower shell body, two symmetrical arc-shaped baffles are arranged between the variable-diameter feeding spiral and the lower shell body, and a gap is arranged between the variable-diameter feeding spiral and the arc-shaped baffle; a plurality of springs are arranged between the arc-shaped baffle and the lower shell body; the two sides of the opening end of the arc-shaped baffle respectively abut against a feeding baffle, and the feeding baffle is fixed in the lower shell body; the arc-shaped baffle can slide along the arc-shaped baffle after being deformed by pressure; the invention can realize integrated kneading and sealing feeding, realize continuous operation, and shorten the processing cycle; the kneading precision can be adjusted; dynamic anti-blocking can be realized, the equipment runs stably, and the energy consumption is reduced; the feeding can be changed while stirring in the cooking tube to improve efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of a cooking tube, in particular to a cooking tube with a kneading, sealing and anti-blocking feeding method. Background Art

[0002] The horizontal tube continuous digester is a high-temperature, fast digester. After the raw materials pass through the digester tube of the digester, they are directly heated to 170-190℃ by steam. The digester cycle is shortened. According to the requirements of raw materials, impregnation conditions and pulping quality, the digester time is between 10-50min. At present, the continuous digester generally puts the raw materials to be boiled into the digester tube for digestion. Because the high-temperature steam flows through the digester tube, and the pressure inside the digester tube is very high, it is easy for the material and steam to spray out from the feed port, which will not only affect the quality of the digester, but also increase the safety risks of the digester process.

[0003] At present, there are several sealed feeding devices on the market, including spiral sealed feeding, variable diameter spiral feeding, piston spiral feeding, etc. These types of devices have their own advantages and disadvantages. In addition, the kneading pretreatment before cooking is a separate process at this stage, and generally a separate kneading machine and other equipment are used for kneading pretreatment. Therefore, the prior art lacks a device that can integrate continuous sealed feeding and perform kneading pretreatment before feeding.

[0004] Patent No. CN217174164U proposes a packing seal cooking tube for convenient and fast feeding. The purpose of the present invention is to provide a packing seal cooking tube for convenient and fast feeding, solve the problem of low feeding efficiency of the cooking tube and inconvenient assembly and adjustment of the pipeline, and the structure is relatively simple. However, its sealing effect is poor, and it cannot achieve coordinated material kneading pre-treatment.

[0005] Patent No. CN104477583A proposes a cooking tube feeding device, in which the cooking raw materials and steam will not be sprayed back, thereby improving the cooking quality and ensuring the safety of the cooking process. However, its feeder is a spiral cone with variable diameter and segmentation, which is driven by a large-torque screw to push the material blocks made of plant straw into the cooking pipe and is used to seal the steam pressure in the cooking pipe. In order to ensure the density of the material, a high-power motor must be used to drive the screw to generate sufficient driving force. Especially in the process of the extruder, two-thirds of the energy is consumed, and because of the strong push of the propeller, the surface of the cone will wear rapidly, resulting in the maintenance and replacement of the cone and propeller, which not only consumes a lot of energy, but also increases a lot of maintenance and manufacturing costs.

[0006] Patent No. CN103015245A proposes a plant fiber continuous steaming piston screw feeder, which uses the impact force of the reciprocating motion of the piston to squeeze the plug, thereby saving effort and achieving better squeezing effect, making the plug better in quality and efficiency, and greatly reducing the motor power of the feeder compared to the motor of the conventional feeder, thus achieving a very significant power saving effect. However, under the impact of the piston, the material will be hardened, which is easy to cause blockage, and the material cannot be fully contacted with the liquid medicine after entering the steaming tube, thus affecting the quality of the output product.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a kneading, sealing and anti-blocking feeding cooking tube in view of the above shortcomings, which can achieve the following purposes:

[0009] 1. It can realize integrated kneading and sealed feeding, realize continuous operation and shorten the processing cycle;

[0010] 2. The kneading accuracy can be adjusted according to different materials and different needs;

[0011] 3. It can realize dynamic anti-blocking. When feeding continuously, the equipment runs more continuously and stably, and reduces energy consumption;

[0012] 4. It can make the cooking tube and the feeding system connect smoothly, and stir and feed the material inside the cooking tube to improve efficiency.

[0013] In order to solve the above technical problems, the present invention adopts the following technical solutions: a kneading, sealing and anti-blocking feeding cooking tube, comprising a kneading feeding device arranged on the cooking tube; the kneading feeding device comprises a lower shell, and the lower shell is composed of a straight cylinder and a conical cylinder connected to the lower end of the straight cylinder;

[0014] A rotatable variable diameter feed screw is arranged in the conical cylinder of the lower shell, two symmetrically arranged arc baffles are arranged between the variable diameter feed screw and the lower shell, and a gap is arranged between the variable diameter feed screw and the arc baffle; a plurality of springs are arranged between the arc baffle and the lower shell;

[0015] Both sides of the opening end of the arc-shaped baffle are respectively against a feed baffle, and the feed baffle is fixed in the lower shell; the arc-shaped baffle can slide along the arc-shaped baffle after being deformed by pressure.

[0016] Furthermore, the kneading feeding device also includes a kneading shell and a rotatable kneading cone, wherein the kneading cone is arranged in the kneading shell; a gap is left between the kneading cone and the kneading shell to form a kneading cavity;

[0017] The kneading shell is fixedly connected to the upper end of the movable upper shell; the movable upper shell can move up and down, and the movable upper shell drives the kneading shell to move up and down, so as to adjust the size of the kneading cavity.

[0018] Furthermore, the kneading and feeding device also includes a stirring mechanism, and the stirring mechanism is arranged in the straight cylinder of the lower shell.

[0019] Furthermore, the lower end of the movable upper shell can be slidably inserted into the straight tube of the lower shell;

[0020] A first blanking baffle is provided in the movable upper shell body, and the first blanking baffle is arranged above the stirring mechanism; a second blanking baffle is provided on the straight cylinder inner wall of the lower shell body, and the second blanking baffle is arranged above the feeding mechanism; the second blanking baffle and the first blanking baffle are both annular plates that gradually shrink from top to bottom.

[0021] Furthermore, the kneading cone and the variable diameter feeding screw are respectively fixed on the upper and lower parts of the power shaft, and the power shaft passes through the cooking tube and is drivingly connected to the output shaft of the motor;

[0022] The stirring mechanism comprises a stirring blade, and the stirring blade is fixed at the middle part of the power shaft.

[0023] Furthermore, the kneading and feeding device is fixed on a frame, a hydraulic jack is fixed on the frame, and the movable upper shell is fixed on a push rod of the hydraulic jack.

[0024] Furthermore, the cooking tube is placed horizontally, and the feed port of the cooking tube is fixedly connected and communicated with the lower end outlet of the lower shell; two pushing spirals are arranged inside the cooking tube, the two pushing spirals are parallel to each other, and the two pushing spirals rotate towards each other.

[0025] Furthermore, the kneading shell is conical, and the kneading cone is a cone; a feed inlet is provided at the top of the kneading shell;

[0026] The kneading cone comprises a plurality of kneading threaded rods; the plurality of kneading threaded rods are parallel to each other and arranged in a cone-shaped kneading threaded rod group.

[0027] Furthermore, the diameters of the conical cylinder of the lower shell and the variable-diameter feed screw both gradually decrease from top to bottom.

[0028] Furthermore, the cooking tube comprises a tube shell, which is fixed on the base; end caps are fixed on both ends of the tube shell; the push screw is fixed on the rotating shaft, and both ends of the rotating shaft are rotatably arranged on the end caps;

[0029] The power shaft passes through the middle of the two pushing screws;

[0030] The end of the cooking tube away from the kneading and feeding device is provided with a discharge port;

[0031] The tube shell is provided with an instrument wiring hole, an air inlet pipe, an exhaust pipe and a hand hole.

[0032] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0033] 1. The present invention provides a kneading feeding device connected to the feed port of the cooking tube, which can knead the material to achieve integration of kneading and sealed feeding and can run continuously, and the kneading accuracy is adjustable.

[0034] 2. In the present invention, a kneading feeding device is provided with a kneading mechanism, which includes a kneading shell and a kneading cone. A kneading cavity is formed between the kneading cone and the kneading shell. The kneading cavity can move up and down driven by the outer movable upper shell, thereby controlling the expansion and contraction of the kneading cavity. The kneading accuracy can be adjusted according to different materials and different needs.

[0035] 3. The present invention sets a variable arc baffle between the variable diameter feeding screw and the lower shell, and the arc baffle and the lower shell are supported by springs. During continuous feeding, if the load at the variable diameter feeding screw is too large, the material will squeeze the arc baffle, and the spring between the arc baffle and the lower shell will be compressed, thereby increasing the gap between the arc baffle and the variable diameter feeding screw, which can realize dynamic anti-blocking and ensure the continuous and stable operation of the equipment. The above-mentioned dynamic anti-blocking structure can be realized without additional driving force, thereby reducing energy consumption;

[0036] 4. Two pushing spirals are arranged in the cooking tube of the present invention to realize double-axis spiral pushing, which is smoothly connected with the kneading feeding device and can automatically rotate the materials to the middle to mix them together, transporting them while stirring, thereby improving efficiency.

[0037] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the present invention;

[0039] Figure 2 yes Figure 1 Middle AA section view;

[0040] Figure 3 yes Figure 1 Middle BB cross-sectional view (arc baffle is not deformed);

[0041] Figure 4 yes Figure 1 Middle BB section view (arc baffle deformation state);

[0042] Figure 5yes Figure 1 Enlarged view of center C.

[0043] In the figure,

[0044] 1-power shaft, 2-first blanking baffle, 3-kneading shell, 4-kneading chamber, 5-feeding port, 6-hydraulic jack, 7-kneading cone, 8-movable upper shell, 9-frame, 10-stirring blade, 11-variable feeding screw, 12-spring, 13-arc baffle, 14-lower shell, 15-motor, 16-cooking tube, 17-second blanking baffle, 18-feeding baffle, 19-pushing screw, 20-tube shell, 21-base, 22-end cover, 23-instrument wiring hole, 24-exhaust pipe, 25-hand hole, 26-rotating shaft, 27-discharge port, 28-intake pipe. DETAILED DESCRIPTION

[0045] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings. Example

[0046] like Figure 1-5 As shown together, the present invention provides a cooking tube with kneading, sealing and anti-blocking feeding, including a frame 9, on which a kneading feeding device is provided, and the discharge end of the kneading feeding device is connected to the feed port of the cooking tube 16.

[0047] The kneading and feeding device includes a kneading mechanism, a stirring structure, a feeding mechanism and a driving mechanism, and the kneading mechanism, the stirring structure and the feeding mechanism are arranged in sequence from top to bottom; the driving mechanism provides power for the kneading mechanism, the stirring structure and the feeding mechanism, and the driving mechanism includes a motor 15, and the motor 15 is fixed at the bottom of the frame 9. The output shaft of the motor 15 is connected to the power shaft 1, and the power shaft 1 extends vertically upward and extends into the feeding mechanism, the stirring mechanism and the kneading mechanism along the center in sequence.

[0048] The kneading mechanism comprises a kneading shell 3, which is conical in shape. A rotatable kneading cone 7 is arranged inside the kneading shell 3, and the kneading cone 7 is a cone. A kneading cavity 4 is formed by a gap between the kneading cone 7 and the kneading shell 3; a feeding port 5 is arranged at the top of the kneading shell 3.

[0049] The kneading cone 4 is coaxially fixed on the upper part of the power shaft 1 .

[0050] Furthermore, the kneading cone 7 includes a plurality of kneading threaded rods, which are parallel to each other and arranged into a cone-shaped kneading threaded rod group.

[0051] The kneading shell 3 is welded and fixed on the movable upper shell 8, and the movable upper shell 8 can move up and down, thereby driving the kneading shell 3 to move up and down, so as to control the expansion or reduction of the kneading cavity 4 between the kneading cone 7 and the kneading shell 3, and achieve different required kneading precisions, which can adapt to different materials and different production needs.

[0052] Furthermore, a hydraulic jack 6 is provided on the frame 9 , and the movable upper shell 8 is fixed on a top rod of the hydraulic jack 6 , and the movable upper shell 8 is driven by the hydraulic jack 6 to move up and down.

[0053] The movable upper shell 8 is provided with a first material drop baffle 2, which is an annular plate that gradually shrinks from top to bottom and can guide the material dropped from above to a specific position.

[0054] A lower shell 14 is provided at the lower end of the movable upper shell 8, and the lower shell 14 consists of a straight cylinder and a conical cylinder connected to the lower end of the straight cylinder. The lower end of the movable upper shell 8 can be slidably inserted into the straight cylinder of the lower shell 14, and the length of the movable upper shell 8 extending into the lower shell 14 is greater than the maximum movement of the movable upper shell 8.

[0055] The feeding mechanism includes a variable diameter feeding screw 11, which is coaxially arranged in the conical cylinder of the lower shell 14, and the diameters of the conical cylinder of the lower shell 14 and the variable diameter feeding screw 11 are gradually reduced from top to bottom. The variable diameter feeding screw 11 is coaxially fixed to the lower part of the power shaft 1.

[0056] The stirring mechanism is arranged in the straight cylinder of the lower shell 14, and the stirring mechanism is arranged below the first material drop baffle 2. The stirring mechanism includes a stirring blade 10, and the stirring blade 10 is fixed to the middle of the power shaft 1. The stirring blade 10 stirs the material, so that the material can be uniformly entered into the feeding mechanism.

[0057] A second material drop baffle 17 is provided on the inner wall of the straight cylinder of the lower shell 14, and the second material drop baffle 17 is arranged above the feeding mechanism. The second material drop baffle 17 has the same structure as the first material drop baffle 2, and is an annular plate that gradually shrinks from top to bottom, and can guide the material falling from the top to a specific position.

[0058] The feeding mechanism also includes two symmetrically arranged arc baffles 13, which are elastic plates that can be deformed after being compressed; the arc baffles 13 are arranged between the variable diameter feeding screw 11 and the inner wall of the lower shell 14, and a gap is provided between the variable diameter feeding screw 11 and the arc baffles 13 to avoid friction.

[0059] The two sides of the opening end of the arc-shaped baffle 13 respectively abut against a feed baffle 18 , and the arc-shaped baffle 13 can slide along the arc-shaped baffle 13 after being deformed by pressure.

[0060] The feed baffle 18 is fixed in the lower shell 14, and a plurality of springs 12 are arranged between the arc baffle 13 and the lower shell 14, and the plurality of springs 12 are evenly arranged. When the load of the variable diameter feed screw 11 is too large, the material will squeeze the arc baffle 13, and the spring 12 between the arc baffle 13 and the lower shell 14 will be compressed, thereby increasing the gap between the arc baffle 13 and the variable diameter feed screw 11 to prevent blockage.

[0061] The cooking tube 16 is placed horizontally, and the feed port of the cooking tube 16 is fixedly connected and communicated with the lower end outlet of the lower shell 14 to realize feeding; two pushing screws 19 are arranged inside the cooking tube 16, and the two pushing screws 19 are parallel to each other. The two pushing screws 19 rotate towards each other, which can automatically rotate the materials to the middle and mix them together, thereby playing the function of stirring and conveying.

[0062] Furthermore, the cooking tube 16 includes a tube shell 20, which is fixed on a base 21; end covers 22 are fixed at both ends of the tube shell 20, and the push screw 19 is fixed on a rotating shaft 26, both ends of the rotating shaft 26 are rotatably arranged on the end covers 22, and one end of the rotating shaft 26 is connected to a driving motor.

[0063] The tube shell 20 is provided with an instrument wiring hole 23 , an air intake pipe 28 , an exhaust pipe 24 and a hand hole 25 .

[0064] Furthermore, the power shaft 1 passes through the middle of the two pushing screws 19 . Specifically, a through hole for the power shaft 1 to pass through is opened on the tube shell 20 .

[0065] Furthermore, a discharge port 27 is provided at one end of the cooking tube 16 away from the kneading and feeding device.

[0066] Working principle of the present invention:

[0067] During operation, the material enters the kneading cavity of the kneading mechanism through the feed inlet, the motor drives the power shaft to rotate, and drives the kneading cone to rotate to knead the material. The kneaded material moves downward, and falls into the stirring mechanism under the gathering effect of the first blanking baffle. After being stirred by the stirring blades, the stirred material enters the feeding mechanism evenly under the gathering effect of the second blanking baffle. The variable-diameter feeding spiral rotates to send the material into the cooking tube, and then the pushing spiral rotates to drive the material to move horizontally to the discharge port.

[0068] In the above process, if the load at the variable diameter feed screw is too large, the material will squeeze the arc baffle, and the spring between the arc baffle and the lower shell will be compressed, thereby increasing the gap between the arc baffle and the variable diameter feed screw to prevent blockage.

[0069] The above is an example of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. A kneading, sealing and anti-blocking feeding cooking tube, characterized in that: It comprises a kneading and feeding device arranged on a cooking tube (16); the kneading and feeding device comprises a lower shell (14), the lower shell (14) is composed of a straight cylinder and a conical cylinder connected to the lower end of the straight cylinder; The kneading feeding device also includes a feeding mechanism, and the feeding mechanism includes a variable diameter feeding screw (11); The rotatable variable diameter feed screw (11) is arranged in the conical cylinder of the lower shell (14); two symmetrically arranged arc-shaped baffles (13) are arranged between the variable diameter feed screw (11) and the lower shell (14); a gap is arranged between the variable diameter feed screw (11) and the arc-shaped baffles (13); and a plurality of springs (12) are arranged between the arc-shaped baffles (13) and the lower shell (14); The arc-shaped baffle (13) is an elastic plate that can be deformed when subjected to pressure; both sides of the opening end of the arc-shaped baffle (13) respectively abut against a feed baffle (18), and the feed baffle (18) is fixed in the lower shell (14); the arc-shaped baffle (13) can slide along the feed baffle (18) after being deformed under pressure; The kneading feeding device further comprises a kneading shell (3) and a rotatable kneading cone (7), wherein the kneading cone (7) is arranged inside the kneading shell (3); a gap is left between the kneading cone (7) and the kneading shell (3), forming a kneading chamber (4); The kneading shell (3) is conical, and the kneading cone (7) is a cone; a feed inlet (5) is provided at the top of the kneading shell (3); The kneading cone (7) comprises a plurality of kneading threaded rods; a kneading threaded rod group wherein the plurality of kneading threaded rods are parallel to each other and arranged in a cone shape; The kneading and feeding device also includes a stirring mechanism, which is arranged in the straight cylinder of the lower shell (14).

2. A kneading, sealing and anti-blocking feeding cooking tube as claimed in claim 1, characterized in that: The kneading shell (3) is fixedly connected to the upper end of the movable upper shell (8); the movable upper shell (8) can move up and down, and the movable upper shell (8) drives the kneading shell (3) to move up and down, so that the size of the kneading chamber (4) can be adjusted.

3. A kneading, sealing and anti-blocking feeding cooking tube as claimed in claim 1, characterized in that: The lower end of the movable upper shell (8) can slide into the straight tube of the lower shell (14); A first material drop baffle (2) is provided in the movable upper shell (8), and the first material drop baffle (2) is arranged above the stirring mechanism; a second material drop baffle (17) is provided on the inner wall of the straight cylinder of the lower shell (14), and the second material drop baffle (17) is arranged above the feeding mechanism; the second material drop baffle (17) and the first material drop baffle (2) are both annular plates that gradually shrink from top to bottom.

4. A kneading, sealing and anti-blocking feeding cooking tube as claimed in claim 1, characterized in that: The kneading cone (7) and the variable diameter feeding screw (11) are respectively fixedly mounted on the upper and lower parts of the power shaft (1); the power shaft (1) passes through the cooking tube (16) and is drivingly connected to the output shaft of the motor (15); The stirring mechanism comprises a stirring blade (10), wherein the stirring blade (10) is fixed at the middle part of the power shaft (1).

5. A kneading, sealing and anti-blocking feeding cooking tube as claimed in claim 2, characterized in that: The kneading and feeding device is fixed on a frame (9), a hydraulic jack (6) is fixed on the frame (9), and the movable upper shell (8) is fixed on the top rod of the hydraulic jack (6).

6. A kneading, sealing and anti-blocking feeding cooking tube as claimed in claim 4, characterized in that: The cooking tube (16) is placed horizontally, and the feed port of the cooking tube (16) is fixedly connected to and communicates with the lower outlet of the lower shell (14); two pushing screws (19) are arranged inside the cooking tube (16), the two pushing screws (19) are parallel to each other, and the two pushing screws (19) rotate in opposite directions.

7. A kneading, sealing and anti-blocking feeding cooking tube as claimed in claim 1, characterized in that: The diameters of the conical cylinder of the lower shell (14) and the variable-diameter feed screw (11) both gradually decrease from top to bottom.

8. A kneading, sealing and anti-blocking feeding cooking tube as claimed in claim 6, characterized in that: The cooking tube (16) comprises a tube shell (20), wherein the tube shell (20) is fixed on a base (21); end covers (22) are fixed at both ends of the tube shell (20); the pushing screw (19) is fixed on a rotating shaft (26), and both ends of the rotating shaft (26) are rotatably arranged on the end covers (22); The power shaft (1) passes through the middle of the two pushing screws (19); An end of the cooking tube (16) away from the kneading and feeding device is provided with a discharge port (27); The tube shell (20) is provided with an instrument wiring hole (23), an air intake pipe (28), an exhaust pipe (24) and a hand hole (25).

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