Environment-friendly ammonium-free delimed cow leather making device

Abstract

The utility model discloses an environment-friendly ammonium-free deliming cowhide tanning device which comprises an equipment base and a deliming pool, the deliming pool is installed on the equipment base, and a lifting pressing type stirring deliming structure is installed on the deliming pool. The lifting compression type stirring deashing structure comprises a deashing groove, two pairs of lifting push rods, a lifting frame, a mounting bracket, a pair of fixed rods, a plurality of movable frames, a plurality of compression net racks, a pair of stirring assemblies and a discharge pipe, the utility model relates to the technical field of leather making equipment, and has the beneficial effects that the problems that ammonium salt is usually used as a deliming agent during deliming treatment in the existing leather making processing, so that the environment is polluted, the health of workers is possibly harmed, and the cowhide is directly stacked and placed in the deliming agent, and a static soaking mode is adopted, so that the working efficiency is high, and the like are solved. The deliming efficiency is low, the leather deliming treatment is not uniform, and the leather quality is influenced.

Description

Technical Field

[0001] This utility model relates to the field of leather processing equipment technology, specifically to an environmentally friendly, ammonium-free deashing cowhide leather processing device. Background Technology

[0002] Leather tanning refers to the process of transforming raw cowhide into leather material with stability, durability, and specific properties through a series of physical, chemical, and mechanical processing techniques. This process causes irreversible chemical changes in the collagen fiber structure of the cowhide, giving the leather water resistance, corrosion resistance, softness, and elasticity to meet the application needs of different fields. Current tanning processes typically use ammonium salts as deliming agents during the deliming process, which not only pollutes the environment but may also harm workers' health. Furthermore, cowhide is often directly stacked in the deliming agent using a static soaking method, resulting in low deliming efficiency and uneven deliming treatment, which affects the quality of the leather. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: an environmentally friendly ammonium-free deashing cowhide tanning device, comprising: an equipment base and a deashing tank, wherein the deashing tank is installed on the equipment base and a lifting and pressing agitating deashing structure is installed on the deashing tank;

[0004] The lifting and pressing agitating deashing structure includes: a deashing trough, two pairs of lifting push rods, a lifting frame, a mounting bracket, a pair of fixed rods, several movable frames, several pressing mesh frames, a pair of agitating components, and a discharge pipe;

[0005] The ash removal trough is located inside the ash removal tank. Two pairs of lifting push rods are installed on the side walls of the ash removal tank. The lifting frame is installed on the output end of the two pairs of lifting push rods. The mounting bracket is installed on the lifting frame. A pair of fixed rods are installed in the middle of the mounting bracket. Several movable frames are movably installed on the mounting bracket and inserted into a pair of fixed rods. Several pressing mesh frames are installed on several movable frames. A pair of agitating components are installed on the ash removal tank. The discharge pipe is embedded in the rear wall of the ash removal tank.

[0006] Preferably, the two pairs of lifting push rods are installed on the ash removal tank via mounting blocks.

[0007] Preferably, the lifting frame is mounted on the output ends of two pairs of lifting push rods via connecting blocks.

[0008] Preferably, several movable frames are fixed to the fixed rod by fixing pins.

[0009] Preferably, each of the agitation components includes: a rotary drive motor, a drive shaft, and an agitation roller shaft;

[0010] The rotary drive motor is installed on the front wall of the deashing tank. The drive shaft is horizontally embedded inside the deashing trough and one end is connected to the output end of the rotary drive motor. The stirring roller shaft is installed on the drive shaft.

[0011] Preferably, the rotary drive motor is mounted on the ash removal tank by fixing bolts.

[0012] Beneficial effects

[0013] This utility model provides an environmentally friendly, ammonium-free deliming device for cowhide tanning, which has the following beneficial effects: This solution uses a lifting and pressing agitating deliming structure and an ammonium-free deliming process. The deliming agent uses natural acidic substances (such as acetic acid and citric acid) instead of traditional ammonium-containing chemicals, completely avoiding ammonia emissions, meeting green tanning requirements, and reducing harm to the environment and human health. Through the lifting and pressing agitating deliming structure, the leather is fixed by a pressing mesh frame, and dynamic deliming is achieved in combination with the agitating components, ensuring full contact between the deliming agent and the leather, improving reaction efficiency. Multiple sets of pressing mesh frames are adjustable to adapt to leathers of different thicknesses, avoiding incomplete deliming in some areas. The agitating roller rotates in both directions, further enhancing the contact reaction between the dehydrating agent and the leather, ensuring uniform deliming. This solves the problems of existing tanning processes that usually use ammonium salts as deliming agents, which not only pollute the environment but may also harm workers' health. Moreover, cowhides are often directly stacked in the deliming agent using a static soaking method, resulting in low deliming efficiency and uneven deliming treatment, affecting leather quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the environmentally friendly ammonium-free deashing cowhide tanning device described in this utility model.

[0015] Figure 2 This is a schematic diagram of the main structure of the environmentally friendly ammonium-free deashing cowhide tanning device described in this utility model.

[0016] Figure 3 This is a side view of the environmentally friendly, ammonium-free deashing cowhide tanning device described in this utility model.

[0017] Figure 4 This is a top-view cross-sectional structural diagram of the deashing tank of the environmentally friendly ammonium-free deashing cowhide tanning device described in this utility model.

[0018] In the diagram: 1-Equipment base; 2-Ash removal tank; 3-Ash removal trough; 4-Lifting push rod; 5-Lifting frame; 6-Mounting bracket; 7-Fixing rod; 8-Movable frame; 9-Pressure mesh frame; 10-Discharge pipe; 11-Mounting block; 12-Connecting block; 13-Fixing pin; 14-Rotary drive motor; 15-Drive shaft; 16-Agitating roller shaft; 17-Fixing bolt. Detailed Implementation

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example: Please refer to Figure 1-4 This utility model provides a technical solution: an environmentally friendly ammonium-free deashing cowhide tanning device. This solution takes into account that the existing leather deashing process uses ammonium-containing deashing agents, which will produce harmful substances, causing environmental pollution and harming the health of workers. In addition, the traditional deashing equipment has a simple structure, and the stacking of leathers causes uneven deashing and low reaction efficiency. Based on the above, this invention sets up the following technical means.

[0021] Specifically, this device includes at least: equipment base 1, ash removal tank 2, ash removal trough 3, two pairs of lifting push rods 4, lifting frame 5, mounting bracket 6, a pair of fixed rods 7, several movable frames 8, several pressing mesh frames 9, a pair of agitation components and discharge pipe 10;

[0022] Each pair of agitation components includes: a rotary drive motor 14, a drive shaft 15, and an agitation roller shaft 16;

[0023] The equipment base 1 and the deashing tank 2 form the main body of the equipment, which supports the installation of all parts. When performing leather deashing, the leather to be treated is placed between two movable frames 8 and flattened and pressed by the pressing mesh frame 9 installed on them. It is then fixed by locking it to the fixing rod 7 with fixing bolts 17. Multiple leathers are fixed in layers. After the leather is fixed, the equipment is started by operating the controller that matches the equipment. The output end of the lifting push rod 4, which is installed on the deashing tank 2 by the mounting block 11, is retracted. The lifting push rod 4 is lowered through the lifting frame 5 and the mounting bracket 6 and immersed in the environmentally friendly deashing agent added to the deashing tank 3. The pressing mesh frame 9 is used to place the leathers together, and the deashing agent is in uniform contact with the leather through the mesh on the pressing mesh frame 9 to ensure the deashing reaction effect and uniformity. At the same time, the rotation drive motor 14 starts to rotate. The drive shaft 15 connected to its output end rotates and drives the stirring roller shaft 16 to rotate in the deashing tank 3. The rotation of the stirring roller shaft 16 agitates the deashing agent, further increasing the deashing efficiency of the leather.

[0024] More specifically, the ash removal trough 3 is opened inside the ash removal tank 2, two pairs of lifting push rods 4 are installed on the two side walls of the ash removal tank 2, the lifting frame 5 is installed on the output end of the two pairs of lifting push rods 4, the mounting bracket 6 is installed on the lifting frame 5, a pair of fixed rods 7 are installed in the middle position of the mounting bracket 6, several movable frames 8 are movably installed on the mounting bracket 6 and inserted into a pair of fixed rods 7, several pressing mesh frames 9 are installed on several movable frames 8, a pair of stirring components are installed in the ash removal tank 2, and the discharge pipe 10 is embedded in the rear wall of the ash removal tank 2;

[0025] A rotary drive motor 14 is installed on the front wall of the deashing tank 2. A drive shaft 15 is horizontally inserted into the deashing trough 3 and one end is connected to the output end of the rotary drive motor 14. An agitator roller shaft 16 is installed on the drive shaft 15.

[0026] In the specific implementation process, furthermore, the two pairs of lifting push rods 4 are installed on the ash removal tank 2 through the mounting block 11.

[0027] In the specific implementation process, the lifting frame 5 is further installed on the output ends of the two pairs of lifting push rods 4 via the connecting block 12.

[0028] In the specific implementation process, furthermore, several movable frames 8 are fixed to the fixed rod 7 by fixing pins 13.

[0029] In the specific implementation process, the rotary drive motor 14 is further installed on the ash removal tank 2 by fixing bolts 17.

[0030] 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. An environmentally friendly, ammonia-free deliming device for cowhide tanning, comprising: The equipment base (1) and the ash removal tank (2) are characterized in that the ash removal tank (2) is installed on the equipment base (1) and the ash removal tank (2) is equipped with a lifting and pressing agitating ash removal structure; The lifting and pressing agitating deashing structure includes: a deashing trough (3), two pairs of lifting push rods (4), a lifting frame (5), a mounting bracket (6), a pair of fixed rods (7), several movable frames (8), several pressing mesh frames (9), a pair of agitating components, and a discharge pipe (10); The ash removal trough (3) is located inside the ash removal tank (2). Two pairs of lifting push rods (4) are installed on the side walls of the ash removal tank (2). The lifting frame (5) is installed on the output end of the two pairs of lifting push rods (4). The mounting bracket (6) is installed on the lifting frame (5). A pair of fixed rods (7) are installed in the middle of the mounting bracket (6). Several movable frames (8) are movably installed on the mounting bracket (6) and inserted into a pair of fixed rods (7). Several pressing mesh frames (9) are installed on several movable frames (8). A pair of agitating components are installed on the ash removal tank (2). The discharge pipe (10) is embedded in the rear wall of the ash removal tank (2).

2. The environmentally friendly ammonium-free deashing cowhide tanning device according to claim 1, characterized in that, Two pairs of lifting push rods (4) are installed on the ash removal tank (2) via mounting blocks (11).

3. The environmentally friendly ammonium-free deashing cowhide tanning device according to claim 1, characterized in that, The lifting frame (5) is installed on the output end of two pairs of lifting push rods (4) via connecting blocks (12).

4. The environmentally friendly ammonium-free deashing cowhide tanning device according to claim 1, characterized in that, Several movable frames (8) are fixed to the fixed rod (7) by fixing pins (13).

5. The environmentally friendly ammonium-free deashing cowhide tanning device according to claim 1, characterized in that, Each pair of agitation components includes: a rotary drive motor (14), a drive shaft (15), and an agitation roller shaft (16); A rotary drive motor (14) is installed on the front wall of the deashing tank (2). A drive shaft (15) is horizontally inserted into the deashing trough (3) and one end is connected to the output end of the rotary drive motor (14). A stirring roller shaft (16) is installed on the drive shaft (15).

6. The environmentally friendly ammonium-free deashing cowhide tanning device according to claim 5, characterized in that, The rotary drive motor (14) is mounted on the ash removal tank (2) by fixing bolts (17).

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