Paper pulp cooking device
By combining the design of the digester, rotating disc, and condensation system, the problem of slow pulp cooking speed was solved, enabling rapid dispersal of plant fibers and improving production efficiency and energy utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHUXIN PACKAGING CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-28
AI Technical Summary
The slow pulp cooking speed affects production efficiency.
The system employs a combination of a cooking chamber, a rotating disc, and a servo motor. The rotating disc cuts air bubbles through its cutting grooves, and the design of the condenser and condenser tubes enables rapid dispersal of plant fibers.
It improved pulp preparation efficiency, reduced water waste, and increased production speed and energy efficiency.
Smart Images

Figure CN224173108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulp cooking technology, specifically a pulp cooking device. Background Technology
[0002] Pulp is a fibrous material made from plant fibers through various processing methods. It can be classified according to the processing method into mechanical pulp, chemical pulp, and chemimechanical pulp; it can also be classified according to the fiber raw materials used into wood pulp, straw pulp, hemp pulp, reed pulp, sugarcane pulp, bamboo pulp, rag pulp, etc.; and it can be classified according to different purity into refined pulp, bleached pulp, unbleached pulp, high-yield pulp, semi-chemical pulp, etc. It is generally used to manufacture paper and paperboard. In addition to being used to manufacture specialty paper, refined pulp is often used as a raw material for manufacturing cellulose esters, cellulose ethers and other cellulose derivatives. It is also used in the fields of artificial fibers, plastics, coatings, films, and gunpowder.
[0003] In the pulp production process, in order to ensure the smoothness of the paper surface, the plant fibers of the raw materials need to be fully cooked and dispersed. After the fibers are dissolved in water, they flow with the water flow. At this time, it is difficult to dissolve the plant fibers into smaller fibers. Therefore, continuous cooking is usually used to process the plant fibers. However, the processing speed is still not fast enough and the production speed needs to be improved. To this end, we propose a pulp cooking device. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a pulp cooking apparatus that solves the problem of slow pulp cooking speed mentioned in the background section.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pulp cooking device, including a cooking chamber, a cooking bottom box fixedly installed on the bottom surface of the cooking chamber, an electric heating coil fixedly fitted on the outside of the cooking bottom box, a rotating disk movably fitted inside the inner cavity of the cooking bottom box, a rotating shaft fixedly connected to the bottom surface of the rotating disk, a servo motor fixedly installed on the bottom surface of the cooking bottom box, and a circular cutting groove opened inside the rotating disk.
[0006] Optionally, an exhaust pipe is fixedly connected to the top surface of the cooking chamber, a condenser is supported at the top of the exhaust pipe, a condenser pipe is fixedly installed inside the condenser, and a pressure limiting valve is fixedly connected to the top surface of the condenser.
[0007] Optionally, the rotating disk is located above the heating coil, the output shaft of the servo motor is connected to the top of the rotating shaft, and the axis of the rotating shaft and the axis of the rotating disk are located on the same vertical line.
[0008] Optionally, the inner cavity of the cooking chamber and the inner cavity of the cooking bottom chamber are connected to each other, and the top and bottom ends of the exhaust pipe are respectively connected to the interior of the condensation chamber and the cooking chamber.
[0009] Optionally, the length of the condenser tube is greater than the length of the condenser box, and the condenser tube extends outward to the outside of the condenser box.
[0010] Optionally, material pipes are connected to the outer side of the cooking chamber and the outer side of the cooking bottom chamber, with the material pipes outside the cooking bottom chamber located near the bottom.
[0011] This utility model provides a pulp cooking device, which has the following beneficial effects:
[0012] 1. This pulp cooking device, through the setting of the cooking chamber, has a cooking bottom chamber set on the bottom surface of the cooking chamber. At the same time, the rotating shaft and rotating disk of the movable support inside the cooking bottom chamber can cut the air bubbles during the rotation of the rotating disk through the cooperation of a servo motor. Then, by utilizing the vibration of a large number of small air bubbles during their movement, the plant fibers are rapidly dispersed, which effectively improves the pulp preparation efficiency and can effectively solve energy problems and improve production efficiency.
[0013] 2. This pulp cooking device, by supporting guide blocks inside the cooking chamber, can guide all the pulp to the interior of the cooking bottom chamber during the falling process. At the same time, the exhaust pipe above the cooking chamber can assist water vapor to enter the inner cavity of the condenser. The water vapor can be condensed through the condenser pipe inside the condenser and then fall back into the inner cavity of the cooking chamber, reducing water waste. The pressure relief valve can play a role in balancing the air pressure. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a structural diagram showing the disassembled parts of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the cooking box of this utility model;
[0017] Figure 4 This is a schematic diagram of the steaming bottom box of this utility model.
[0018] In the diagram: 1. Cooking chamber; 2. Cooking bottom chamber; 3. Exhaust pipe; 4. Condensation chamber; 5. Rotating shaft; 6. Rotating disc; 7. Heating coil; 8. Servo motor; 9. Guide block; 10. Condensation tube; 11. Pressure relief valve. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a pulp cooking device, including a cooking chamber 1, a cooking bottom chamber 2 fixedly installed on the bottom surface of the cooking chamber 1, the cooking bottom chamber 2 is configured to complete the cooking of pulp, effectively improving the cooking efficiency, an electric heating coil 7 is fixedly fitted on the outside of the cooking bottom chamber 2, the electric heating coil 7 is configured to continuously heat the pulp water, thereby keeping the water in a continuous rolling state, a rotating disk 6 is movably fitted inside the cavity of the cooking bottom chamber 2, a rotating shaft 5 is fixedly connected to the bottom surface of the rotating disk 6, the rotating shaft 5 can cooperate to support the rotating disk 6, thereby assisting the rotation of the rotating disk 6 to achieve the cutting of air bubbles, a servo motor 8 is fixedly installed on the bottom surface of the cooking bottom chamber 2, and a circular cutting groove is opened inside the rotating disk 6.
[0021] The top surface of the cooking chamber 1 is fixedly connected to an exhaust pipe 3, and the top of the exhaust pipe 3 is supported by a condenser 4. The condenser 4 is fixedly fitted with a condenser pipe 10 inside, and a pressure limiting valve 11 is fixedly connected to the top surface of the condenser 4. The cooperation between the exhaust pipe 3 and the condenser 4 can realize the condensation and fall of steam, reduce the direct escape of water vapor, and prevent direct waste of water.
[0022] The rotating disk 6 is located above the heating coil 7. The output shaft of the servo motor 8 is connected to the top of the rotating shaft 5. The axis of the rotating shaft 5 and the axis of the rotating disk 6 are on the same vertical line. The heating coil 7 can play a heating role, and the rotating disk 6 can play a role in cutting bubbles, thus effectively ensuring the efficiency of the oscillating water tank.
[0023] The inner cavity of the cooking chamber 1 and the inner cavity of the cooking bottom chamber 2 are connected to each other. The top and bottom of the exhaust pipe 3 are connected to the interior of the condenser chamber 4 and the cooking chamber 1, respectively. The exhaust pipe 3 and the condenser chamber 4 can play the role of cooling and condensation.
[0024] The length of the condenser tube 10 is greater than the length of the condenser box 4. The condenser tube 10 extends outward to the outside of the condenser box 4. The condenser tube 10 is designed to condense water vapor, which then drips down.
[0025] Material pipes are connected to the outside of the cooking chamber 1 and the outside of the cooking bottom chamber 2, with the material pipes on the outside of the cooking bottom chamber 2 located near the bottom.
[0026] In summary, this pulp cooking apparatus, during use, first mixes the raw material and water, then sends the mixture from the outside of the cooking chamber 1 to its inner cavity. The mixture then falls into the cooking tank 2. The servo motor 8 is started, and its output shaft controls the rotating shaft 5 to rotate, which in turn drives the rotating disk 6. Simultaneously, the heating coil 7 continuously heats the inside of the cooking tank 2, transferring the temperature to its inner wall. Bubbles are continuously generated on the inner wall of the cooking tank 2, located inside the heating coil 7, and then rise upwards. During this bubble movement, some bubbles rise directly through the two fan-shaped perforated slots of the rotating disk 6, while others are cut into smaller bubbles by the dividing holes of the rotating disk 6 and move upwards. The movement of these smaller bubbles effectively vibrates the entire tank, thus achieving rapid and efficient dispersal of plant fibers.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pulp cooking apparatus, comprising a cooking chamber (1), characterized in that: The bottom surface of the cooking oven (1) is fixedly installed with a cooking bottom box (2), the outside of the cooking bottom box (2) is fixedly fitted with an electric heating coil (7), the inner cavity of the cooking bottom box (2) is movably fitted with a rotating disk (6), the bottom surface of the rotating disk (6) is fixedly connected with a rotating shaft (5), the bottom surface of the cooking bottom box (2) is fixedly installed with a servo motor (8), and the inside of the rotating disk (6) is provided with a circular cutting groove.
2. The pulp cooking apparatus according to claim 1, characterized in that: The top surface of the cooking chamber (1) is fixedly connected to an exhaust pipe (3), the top end of the exhaust pipe (3) is supported by a condenser (4), the condenser (4) is fixedly fitted with a condenser pipe (10), and the top surface of the condenser (4) is fixedly connected to a pressure limiting valve (11).
3. The pulp cooking apparatus according to claim 1, characterized in that: The rotating disk (6) is located above the heating coil (7), and the output shaft of the servo motor (8) is connected to the top of the rotating shaft (5). The axis of the rotating shaft (5) and the axis of the rotating disk (6) are located on the same vertical line.
4. The pulp cooking apparatus according to claim 2, characterized in that: The inner cavity of the cooking chamber (1) and the inner cavity of the cooking bottom chamber (2) are connected to each other, and the top and bottom ends of the exhaust pipe (3) are respectively connected to the interior of the condenser (4) and the cooking chamber (1).
5. The pulp cooking apparatus according to claim 2, characterized in that: The length of the condenser tube (10) is greater than the length of the condenser box (4), and the condenser tube (10) extends outward to the outside of the condenser box (4).
6. The pulp cooking apparatus according to claim 1, characterized in that: Material pipes are connected to the outside of the cooking chamber (1) and the outside of the cooking bottom chamber (2), with the material pipes outside the cooking bottom chamber (2) located near the bottom.