CN-224212680-U - Environment-friendly ammonium-free deashing cowhide tanning device

CN224212680UCN 224212680 UCN224212680 UCN 224212680UCN-224212680-U

Abstract

The utility model discloses an environment-friendly ammonium-free deashing cowhide tanning device which comprises an equipment base and a deashing tank, wherein the deashing tank is arranged on the equipment base, a lifting pressing type stirring deashing structure is arranged on the deashing tank, the lifting pressing type stirring deashing structure comprises a deashing tank, 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 pressing net racks, a pair of stirring assemblies and a discharge pipe, and the environment-friendly ammonium-free deashing cowhide tanning device has the beneficial effects that ammonium salt is generally adopted as a deashing agent when the conventional tanning processing is carried out, so that the environment is polluted, the health of workers is possibly endangered, and the cowhide is mostly directly stacked in the deashing agent, and the problems of low deashing efficiency and uneven leather deashing treatment and influence on leather quality are solved.

Inventors

FAN XUHUI
Xia Haofan
FAN ENYUAN
CAO JIANQING
MA BING
ZHANG YUANLIN
Qin Luhao
CHEN XUEFANG

Assignees

中牛集团有限公司

Dates

Publication Date: 20260508
Application Date: 20250611

Claims (6)

1. An environment-friendly ammonium-free deashing cowhide tanning device comprises an equipment base (1) and a deashing pool (2), and is characterized in that the deashing pool (2) is arranged on the equipment base (1), and a lifting compression type stirring deashing structure is arranged on the deashing pool (2); The lifting compression type stirring deashing structure comprises a deashing groove (3), two pairs of lifting push rods (4), a lifting frame (5), a mounting bracket (6), a pair of fixed rods (7), a plurality of movable frames (8), a plurality of compression net racks (9), a pair of stirring components and a discharge pipe (10); The ash removal tank (3) is arranged inside the ash removal tank (2), two pairs of lifting push rods (4) are arranged on two side wall surfaces of the ash removal tank (2), lifting frames (5) are arranged on the output ends of the two pairs of lifting push rods (4), mounting brackets (6) are arranged on the lifting frames (5), a pair of fixing rods (7) are arranged at the middle positions of the mounting brackets (6), a plurality of movable frames (8) are movably arranged on the mounting brackets (6) and are inserted on the pair of fixing rods (7), a plurality of pressing net racks (9) are arranged on the plurality of movable frames (8), a pair of stirring assemblies are arranged on the ash removal tank (2), and a discharge pipe (10) is embedded on the rear wall surface of the ash removal tank (2).
2. An environmentally friendly ammonium-free deashing cowhide tanning apparatus according to claim 1, wherein two pairs of lifting pushrods (4) are mounted on the deashing basin (2) by means of mounting blocks (11).
3. An environmentally friendly ammonium-free deashing cowhide tanning apparatus according to claim 1, wherein the lifting frame (5) is mounted on the output ends of two pairs of lifting push rods (4) through connecting blocks (12).
4. An environmentally friendly ammonium-free deashing cowhide tanning device according to claim 1, characterized in that a plurality of movable frames (8) are fixed on the fixed bar (7) by means of fixing pins (13).
5. The environmentally friendly ammonium-free deashing cowhide tanning apparatus of claim 1, wherein the pair of agitation assemblies each comprise a rotary drive motor (14), a drive shaft (15) and an agitation roller (16); The rotary driving motor (14) is arranged on the front wall surface of the ash removal tank (2), the driving rotating shaft (15) transversely penetrates through and is embedded in the ash removal tank (3), one end of the driving rotating shaft is connected with the output end of the rotary driving motor (14), and the stirring roller shaft (16) is arranged on the driving rotating shaft (15).
6. An environmentally friendly ammonium-free deashing kraft tanning apparatus in accordance with claim 5, wherein the rotary drive motor (14) is mounted to the deashing tank (2) by means of a fixing bolt (17).

Description

Environment-friendly ammonium-free deashing cowhide tanning device Technical Field The utility model relates to the technical field of tanning equipment, in particular to an environment-friendly ammonium-free deashing cowhide tanning device. Background The leather making process is to convert the rawhide into leather materials with stability, durability and specific performance through a series of physical, chemical and mechanical processing processes, so that the collagen fiber structure of the rawhide is subjected to irreversible chemical change, the characteristics of water resistance, corrosion resistance, softness and elasticity are endowed to the leather, the application requirements of different fields are met, ammonium salt is usually adopted as a deliming agent when the conventional leather making process carries out deliming treatment, the environment is polluted, the health of workers is possibly endangered, the rawhide is directly stacked and placed in the deliming agent, the deliming efficiency is low, the deliming treatment of the leather is uneven, and the leather quality is influenced. Disclosure of utility model The environment-friendly ammonia-free deashing cowhide tanning device comprises an equipment base and a deashing tank, wherein the deashing tank is arranged on the equipment base, and a lifting compression type stirring deashing structure is arranged on the deashing tank; the lifting compression type stirring deashing structure comprises a deashing groove, two pairs of lifting push rods, lifting frames, a mounting bracket, a pair of fixed rods, a plurality of movable frames, a plurality of compression net racks, a pair of stirring components and a discharge pipe; The ash removal groove is formed in the ash removal pond, two pairs of lifting push rods are arranged on two side wall surfaces of the ash removal pond, lifting frames are arranged on the output ends of the two pairs of lifting push rods, a mounting bracket is arranged on the lifting frames, a pair of fixing rods are arranged at the middle positions of the mounting brackets, a plurality of movable frames are movably arranged on the mounting brackets and are inserted on the pair of fixing rods, a plurality of compaction net racks are arranged on the plurality of movable frames, a pair of stirring assemblies are arranged on the ash removal pond, and a discharge pipe is embedded on the rear wall surface of the ash removal pond. Preferably, the two pairs of lifting push rods are arranged on the ash removal tank through the mounting blocks. Preferably, the lifting frame is arranged on the output ends of the two pairs of lifting push rods through the connecting blocks. Preferably, the plurality of movable frames are fixed on the fixed rod through fixed pins. Preferably, the pair of stirring assemblies comprises a rotary driving motor, a driving rotating shaft and a stirring roller shaft; The rotary driving motor is arranged on the front wall surface of the ash removal tank, the driving rotating shaft transversely penetrates through and is embedded in the ash removal tank, one end of the driving rotating shaft is connected with the output end of the rotary driving motor, and the stirring roller shaft is arranged on the driving rotating shaft. Preferably, the rotary driving motor is mounted on the ash removal tank by a fixing bolt. Advantageous effects The utility model provides an environment-friendly ammonium-free deashing cowhide leather making device which has the advantages that a lifting and pressing type stirring deashing structure is used, an ammonium-free deashing process is used, natural acidic substances (such as acetic acid and citric acid) are used as a deashing agent to replace traditional ammonium-containing chemicals, ammonia emission is thoroughly avoided, the environment-friendly leather making requirement is met, harm to the environment and human bodies is reduced, the leather is fixed through the lifting and pressing type stirring deashing structure, dynamic deashing is realized by combining a stirring assembly, the full contact of the deashing agent and the leather is ensured, the reaction efficiency is improved, multiple groups of pressing net frames are adjustable, the leather with different thicknesses is adapted, the incomplete local deashing is avoided, the bidirectional rotation of a stirring roller shaft is further improved, the contact reaction of the dewatering agent and the leather is further improved, the deashing uniformity is ensured, the problems that the environment is polluted, the health of workers is possibly endangered due to the fact that the cowhide is directly stacked in the deashing agent, the static soaking mode is adopted, the deashing efficiency is low, and the quality of the leather is influenced. Drawings Fig. 1 is a schematic perspective view of an environment-friendly ammonium-free deashing cowhide tanning device. Fig. 2 is a schematic diagram of a front view structure of an enviro