Automatic film drawing device for salt beach crystallizing pond
By designing an automatic film-pulling device for salt flat crystallization ponds, the automatic operation of the rainproof film is achieved by using a film-rolling shaft, rope wheel, and negative pressure adsorption device, which solves the problem of time-consuming and labor-intensive manual operation and improves the efficiency of brine protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-06
AI Technical Summary
The manual installation and removal of rainproof membranes in salt ponds is time-consuming, labor-intensive, and inefficient, and cannot automatically protect the brine in severe weather.
An automatic film-pulling device for salt flat crystallization ponds was designed, including a film-rolling shaft, a driving rope wheel, a driven rope wheel, a steel wire rope, a clamping assembly, and a negative pressure adsorption device. The device uses a geared motor to drive the steel wire rope to move and clamp the film, and uses negative pressure adsorption to fix the rainproof film.
The automated installation and removal of rainproof membranes for salt ponds has been achieved, improving work efficiency, preventing rainwater from entering the salt ponds, and protecting the quality of the brine.
Smart Images

Figure CN223973616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of salt production technology, specifically to an automatic film-pulling device for salt flat crystallization ponds. Background Technology
[0002] In coastal areas of my country, there are many salt fields where seawater is enclosed and exposed to the sun to evaporate, gradually crystallizing into solid salt. However, when the weather is inclement, salt production cannot proceed, and rainproof membranes must be laid to protect the brine from rainwater dilution or contamination. This method of covering salt fields with rainproof membranes requires manual operation, and the membranes must be removed manually after the weather recovers. This method is not only time-consuming and labor-intensive but also inefficient. Utility Model Content
[0003] To overcome the shortcomings of the prior art, this utility model provides an automatic membrane laying device for salt flat crystallization ponds, which solves the problem that manually laying rainproof membranes in salt ponds is not only time-consuming and labor-intensive but also inefficient.
[0004] The technical solution adopted in this utility model is as follows:
[0005] An automatic membrane-pulling device for salt flat crystallization ponds includes a rainproof membrane and further includes:
[0006] A film-rolling shaft is located at the rear end of the salt pond, and the rainproof film is mounted on the film-rolling shaft, which is equipped with a power unit.
[0007] The drive pulley is mounted on the film winding shaft and located on both sides of the salt pond;
[0008] Driven sheaves are located on both sides at the front end of the salt pond;
[0009] The wire rope is installed between the driving sheave and the driven sheave;
[0010] The clamping assembly is connected at one end to the front end of the rainproof membrane and at the other end to the steel wire rope;
[0011] The negative pressure adsorption device is installed around the perimeter of the salt pond.
[0012] The clamping assembly includes an upper clamping plate and a lower clamping plate. The upper clamping plate is rotatably mounted on the lower clamping plate. The lower clamping plate is provided with a first bolt for passing through the upper clamping plate. The lower clamping plate is provided with a through hole for engaging with the wire rope. A second bolt is provided at the through hole for tightening the wire rope.
[0013] The clamping surfaces of both the upper and lower clamping plates are provided with anti-slip protrusions.
[0014] The upper and lower clamping plates are made of stainless steel.
[0015] The clamping assembly has rollers at its bottom, and the rollers are equipped with guide rails.
[0016] The negative pressure adsorption device includes a hollow tube arranged around the circumference of the salt pool, the hollow tube being evenly distributed with vacuum suction cups for communicating with the hollow tube, and the hollow tube being connected to a vacuum pump.
[0017] Both the driving and driven sheaves are equipped with protective covers.
[0018] The beneficial effects of this utility model are:
[0019] The power unit is a geared motor, which drives the film-rolling shaft and the drive rope wheel to rotate, thereby moving the steel wire rope. The clamping components on both sides of the salt pool clamp the rainproof membrane and move it forward through the steel wire rope, so that the rainproof membrane covers the salt pool. Then, the negative pressure adsorption device holds the rainproof membrane in place to prevent rainwater from entering the salt pool. This device can realize the automatic laying and removal of the rainproof membrane, with high work efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the present invention.
[0021] Figure 2 This is a schematic diagram of the clamping component of this utility model.
[0022] Figure 3 This is a schematic diagram of the side of this utility model.
[0023] 1. Rainproof film, 2. Roller shaft, 3. Driven pulley, 4. Steel wire rope, 5. Clamping assembly, 6. Upper clamping plate, 61. Lower clamping plate, 62. Bolt No. 1, 63. Bolt No. 2, 64. Negative pressure adsorption device, 7. Hollow tube, 71. Vacuum suction cup, 72. Anti-slip protrusion, 8. Roller, 9. Guide rail, 10. Protective cover, 11. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0025] In the embodiments, such as Figure 1 , Figure 3 As shown, an automatic membrane-pulling device for a salt flat crystallization pond includes a rainproof membrane 1, and further includes:
[0026] A film-rolling shaft 2 is located at the rear end of the salt pond, and the rainproof film 1 is mounted on the film-rolling shaft 2. The film-rolling shaft 2 is equipped with a power unit.
[0027] The active rope pulley 3 is mounted on the film winding shaft 1 and located on both sides of the salt pond;
[0028] Driven rope pulleys 4 are located on both sides at the front end of the salt pond;
[0029] Wire rope 5 is installed between the driving pulley 3 and the driven pulley 4;
[0030] The clamping component 6 is connected at one end to the front end of the rainproof film 1 and at the other end to the steel wire rope 5.
[0031] The negative pressure adsorption device 7 is installed around the perimeter of the salt pond.
[0032] The power unit is a geared motor, which drives the film-rolling shaft 2 and the drive rope wheel 3 to rotate, thereby moving the steel wire rope 5. The clamping components 6 on both sides of the salt pool clamp the rainproof membrane 1 and move it forward through the steel wire rope 5, so that the rainproof membrane 1 covers the salt pool. Then, the negative pressure adsorption device 7 is used to hold the rainproof membrane 1 in place, preventing rainwater from entering the salt pool. This device can realize the automatic laying and removal of the rainproof membrane, with high work efficiency.
[0033] In the embodiments, such as Figure 1 , Figure 2 As shown, the clamping assembly 6 includes an upper clamping plate 61 and a lower clamping plate 62. The upper clamping plate 61 is rotatably mounted on the lower clamping plate 62. The lower clamping plate 62 is provided with a first bolt 63 for passing through the upper clamping plate 61, and a through hole for engaging with the wire rope. A second bolt 64 is provided at the through hole for tightening the wire rope 5. By tightening the first bolt 63, the upper clamping plate 61 and the lower clamping plate 62 clamp the rainproof membrane 1, and the second bolt 64 tightens the wire rope 5, thus fixing the lower clamping plate 62 onto the wire rope 5. The structure is simple.
[0034] In the embodiments, such as Figure 2 As shown, both the upper clamping plate 61 and the lower clamping plate 62 have anti-slip protrusions 8 on their clamping surfaces. This ensures that after the upper clamping plate 61 and the lower clamping plate 62 clamp the rainproof film 1, the rainproof film 1 is not easily displaced, thus ensuring stable clamping.
[0035] In this embodiment, the upper clamping plate 61 and the lower clamping plate 62 are made of stainless steel. The upper clamping plate 61 and the lower clamping plate 62 are not easily corroded by the coastal environment and have a long service life.
[0036] In the embodiments, such as Figure 2 , Figure 3 As shown, the bottom of the clamping assembly 6 is equipped with rollers 9, and the rollers 9 are fitted with guide rails 10. This ensures the linearity of the movement of the clamping assembly 6 and provides uniform coverage of both sides of the salt pond.
[0037] In the embodiments, such as Figure 1 As shown, the negative pressure adsorption device 7 includes a hollow tube 71 arranged around the circumference of the salt pool. Vacuum suction cups 72 are evenly distributed on the hollow tube 71 for communicating with the hollow tube 71, and a vacuum pump is connected to the hollow tube 71. The vacuum pump generates negative pressure inside the hollow tube 71, and the vacuum suction cups 72 adsorb the rainproof film 1. The structure is simple.
[0038] In the embodiments, such as Figure 1 , Figure 3 As shown, both the driving pulley 3 and the driven pulley 4 are equipped with protective covers 11. These prevent foreign objects from entering the grooves of the driving pulley 3 and the driven pulley 4, ensuring that the rainproof membrane 1 can move normally.
[0039] Obviously, the above embodiments of this utility model are merely illustrative examples and not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.
Claims
1. An automatic membrane pulling device for salt pan crystallization ponds, comprising a rainproof membrane (1), characterized in that, Also include: Roll film shaft (2) is arranged in the rear end of the salt pool, the rainproof film (1) is arranged on the roll film shaft (2), the roll film shaft (2) is equipped with power device; Driving rope wheel (3) is arranged on the roll film shaft (2) and is located on both sides of the salt pool; Driven rope wheel (4) is arranged on both sides of the front end of the salt pool; Steel wire rope (5) is arranged between the driving rope wheel (3) and the driven rope wheel (4); Clamping assembly (6) is connected with the front end of the rainproof film (1) at one end and connected with the steel wire rope (5) at the other end; Negative pressure adsorption device (7) is arranged in the circumferential direction of the salt pool.
2. The automatic membrane pulling device of a salt beach crystallization tank according to claim 1, characterized in that: The clamping assembly (6) includes an upper clamping plate (61) and a lower clamping plate (62), the upper clamping plate (61) is rotatably installed on the lower clamping plate (62), the lower clamping plate (62) is provided with a No. 1 bolt (63) for penetrating the upper clamping plate (61), the lower clamping plate (62) is provided with a through hole for cooperating with the steel wire rope, and the through hole is provided with a No. 2 bolt (64) for clamping the steel wire rope (5).
3. The automatic membrane pulling device of a salt pan crystallization cell according to claim 2, characterized in that: The clamping surface of the upper clamping plate (61) and the lower clamping plate (62) is provided with anti-skid convex (8).
4. The automatic membrane pulling device of a salt pan crystallization cell according to claim 2, characterized in that: The upper clamping plate (61) and the lower clamping plate (62) are made of stainless steel material.
5. The automatic membrane pulling device of a salt pan crystallization cell according to claim 1, characterized in that: The bottom of the clamping assembly (6) is provided with a roller (9), and the roller (9) is provided with a guide rail (10).
6. The automatic membrane pulling device of a salt pan crystallization cell according to claim 1, characterized in that: The negative pressure adsorption device (7) includes a hollow tube (71) arranged in the circumferential direction of the salt pool, the hollow tubes (71) are uniformly distributed by vacuum suction cups (72) for communicating with the hollow tubes (71), and the hollow tubes (71) are connected with a vacuum pump.
7. The automatic membrane pulling device of a salt pan crystallization cell according to claim 1, characterized in that: The driving rope wheel (3) and the driven rope wheel (4) are both provided with a protective cover (11).