Plastic storage tank

By setting a discharge chute at the bottom of the plastic storage tank and using a double-layered inclined inner bottom plate, the problem of material residue at the bottom of the tank is solved, and the complete discharge of materials and the guarantee of reaction quality are achieved.

CN223822459UActive Publication Date: 2026-01-23JIANGSU CHENLI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520028123.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2026-01-23
Estimated Expiration
2035-01-07

AI Technical Summary

Technical Problem

Existing plastic storage tanks have the problem of material residue at the bottom of the tank, especially the sediment that is difficult to completely drain, which affects the storage and reaction quality of the next batch of materials.

Method used

Several discharge troughs are set at the bottom of the tank, which are connected to the discharge port. The bottom of the tank adopts a double-layer structure with an inclined inner bottom plate. The material is discharged after being collected through the discharge troughs. The tank body is integrally wound and molded using PPH. The top cover is fixedly connected to the tank body with fasteners to enhance the reliability of the connection.

Benefits of technology

This ensures that all materials are completely discharged from the tank, preventing residues and guaranteeing the storage and reaction quality of the next batch of materials, thus improving the quality of the materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic storage tank which comprises a tank body, a top cover and a tank bottom, the tank bottom is provided with a plurality of discharge grooves, and the bottom of the tank body is provided with a discharge port communicated with the discharge grooves. The discharge grooves are formed in the tank bottom, materials and sediments in the tank body are all collected through the discharge grooves and then discharged, it can be guaranteed that all the materials in the tank body are pumped out, residual materials at the tank bottom are avoided, storage and reaction of the next batch of materials are guaranteed, and the quality of the materials is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a storage tank technical field especially a plastic storage tank. BACKGROUND

[0002] The plastic storage tank is economic and durable, has superior performance, and is widely used in high-purity materials (high-purity manganese sulfate, iron phosphate, etc.) for batteries, battery recycling and other industries.

[0003] Most of the existing plastic storage tanks adopt flat bottom structure, and the storage tank usually has the problem that materials cannot be completely discharged from the tank bottom, and materials are left on the tank bottom, especially materials with sediment, and the material residue is more obvious, and the residue of the materials will affect the storage and reaction of the next batch of materials, and will also have a certain influence on the quality of the materials. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the existing flat bottom type plastic storage tank, the present application provides a plastic storage tank with a reasonable structure, a plurality of discharge grooves are arranged on the tank bottom, the discharge grooves are communicated with the discharge port, the materials are discharged from the discharge port through the discharge grooves, all the materials in the tank are ensured to be discharged, the materials left on the tank bottom are avoided, the storage and reaction of the next batch of materials are ensured, and the quality of the materials is ensured.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A plastic storage tank comprises a tank body, a top cover and a tank bottom, a plurality of discharge grooves are arranged on the tank bottom, and a discharge port communicated with the discharge grooves is arranged on the bottom of the tank body.

[0007] As a further improvement of the above technical scheme:

[0008] The plurality of discharge grooves are communicated with each other.

[0009] The tank bottom is a double-layer structure comprising an outer bottom plate and an inner bottom plate, and the plurality of discharge grooves are arranged on the inner bottom plate.

[0010] A plurality of inner bottom plates in the shape of sectors are arranged on the inner side of the outer bottom plate, the adjacent inner bottom plates have a distance between the corresponding side edges to form the discharge grooves, and the plurality of discharge grooves are converged and communicated at the center of the outer bottom plate.

[0011] The inner bottom plate is inclined downward toward the discharge grooves.

[0012] Each inner bottom plate is inclined downward toward the same discharge groove in the same direction, or each inner bottom plate is inclined downward toward the convergence of the discharge grooves, or each inner bottom plate is inclined downward toward different discharge grooves in different directions, and the inclination angle α of the inner bottom plate is 1-5°.

[0013] A blowdown port communicated with the discharge grooves is arranged on the bottom of the tank body.

[0014] The tank body is integrally wound and formed by PPH; a plurality of hoops are sleeved on the outer periphery of the tank body; a plurality of vertical ribs are arranged on the inner wall surface of the tank body; and a plurality of inner triangular ribs are arranged between adjacent vertical ribs.

[0015] The top cover comprises a first cover body and a second cover body, and the first cover body and the second cover body are fixedly connected through fasteners; a plurality of outer upper triangular ribs are arranged between the top cover and the top end of the tank body; a material inlet, a standby port, a liquid level meter port and an observation port are arranged on the top cover.

[0016] A plurality of discharge grooves are arranged on the tank bottom, and the bottom end of the tank body is inserted into the discharge grooves; the groove depth h of the discharge grooves is 10-25 mm; and a plurality of outer lower triangular ribs are arranged between the bottom end of the tank body and the tank bottom.

[0017] The beneficial effects of the utility model are as follows:

[0018] The tank bottom of the utility model is provided with a plurality of discharge grooves, and all the materials and deposits in the tank body are collected through the discharge grooves and then discharged, so that all the materials in the tank body can be extracted, residual materials in the tank bottom are avoided, the storage and reaction of the next batch of materials are ensured, and the quality of the materials is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a top view of the utility model.

[0020] Figure 2 It is Figure 1 It is a sectional view of A-A section.

[0021] Figure 3 It is Figure 2 It is a sectional view of B-B section.

[0022] Figure 4 It is Figure 2 It is a sectional view of C-C section.

[0023] Figure 5 It is Figure 4 It is an enlarged view of D part.

[0024] In the drawings: 1, tank body; 2, top cover; 21, first cover body; 22, second cover body; 3, outer bottom plate; 31, discharge groove; 4, inner bottom plate; 5, discharge groove; 6, hoop; 7, vertical rib; 8, inner triangular rib; 9, outer upper triangular rib; 10, outer lower triangular rib. DETAILED DESCRIPTION

[0025] The specific implementation manner of the utility model will be described below in combination with the drawings.

[0026] For example, Figures 1 to 4As shown, this utility model includes a tank body 1, a top cover 2, an outer bottom plate 3, and an inner bottom plate 4. The inner bottom plate 4 is arranged inside the outer bottom plate 3 to form a double-layer tank bottom. The top cover 2 and the outer bottom plate 3 are welded and fixed to the top and bottom of the tank body 1, respectively.

[0027] like Figures 2 to 4 As shown, several fan-shaped inner bottom plates 4 are arranged on the inner side of the outer bottom plate 3. The outer arc edge of the inner bottom plate 4 is attached to the inner wall of the tank body 1. There is a certain distance between the side edge of the inner bottom plate 4 and the corresponding side edge of the adjacent inner bottom plate 4. A discharge trough 5 is formed between the adjacent inner bottom plates 4, and the discharge troughs 5 formed between the several inner bottom plates 4 are interconnected. In this embodiment, three fan-shaped inner bottom plates 4 are provided on the inner side of the outer bottom plate 3, forming three discharge troughs 5 on the inner side of the outer bottom plate 3. The three discharge troughs 5 converge and are interconnected in the center of the outer bottom plate 3. In other embodiments, a whole inner bottom plate 4 can also be provided inside the outer bottom plate 3, and several interconnected discharge troughs 5 can be opened on the whole inner bottom plate 4. A discharge port and a sludge discharge port (not shown in the figure) are opened at the bottom of the tank body 1, and the discharge port and the sludge discharge port are connected to the discharge troughs 5. All materials or sediments inside tank 1 are collected through discharge chute 5 and then discharged from the outlet (material) or drain (sediment). The material is drawn out through discharge chute 5, ensuring that all materials inside tank 1 are removed, preventing material residue at the bottom of the tank, guaranteeing the storage and reaction of the next batch of materials, and ensuring material quality. Figure 4 , Figure 5 As shown, the inner bottom plate 4 is inclined downwards at a certain angle towards the discharge chute 5. In this embodiment, each inner bottom plate 4 is inclined downwards towards the same discharge chute 5 in the same direction. In other embodiments, each inner bottom plate 4 may also be inclined downwards towards the convergence point of each discharge chute 5. In other embodiments, each inner bottom plate 4 may also be inclined downwards towards different discharge chute 5s in different directions. The downward inclination angle α of the inner bottom plate 4 is 1 to 5°, ensuring that the inner bottom plate 4 has a certain inclination while preventing it from occupying too much space inside the tank, thus ensuring the storage space of the tank 1. The inclination of the inner bottom plate 4 towards the discharge chute 5 is more conducive to the material gathering and being discharged into the discharge chute 5 under the action of gravity, avoiding the deposition of material (especially material with sediment) on the inner bottom plate 4, and making the material discharge cleaner and more thorough.

[0028] like Figures 2 to 4As shown in the drawings, the tank body 1 is integrally wound by PPH (homopolymer polypropylene), and the tank body 1 is made by winding and demolding with a steel mold. The tank body 1 has uniform thickness, high reliability, good integrity, small self-stress, strong impact resistance, high tensile strength, smooth inner surface without pores, short manufacturing cycle, convenient installation, and quick maintenance. The outer periphery of the tank body 1 is sleeved with a plurality of hoops 6 from top to bottom, which can adapt to the deformation of the tank body 1 and ensure the strength of the tank body 1. A plurality of vertical ribs 7 are vertically arranged on the inner wall surface of the tank body 1, and a plurality of inner triangular ribs 8 are arranged between adjacent vertical ribs 7 from top to bottom. The vertical ribs 7 and the inner triangular ribs 8 can support the tank body 1 into a cylindrical shape, improving the overall strength of the tank body 1.

[0029] As shown in the drawings, Figure 1 , Figure 2 The top cover 2 includes two independent first cover body 21 and second cover body 22, the first cover body 21 and second cover body 22 are spliced together and fixedly connected by fasteners, and the first cover body 21 and second cover body 22 are respectively welded and fixed with the tank body 1. A plurality of outer upper triangular ribs 9 are arranged between the top cover 2 and the top end of the tank body 1, which can improve the connection strength and reliability. The top cover 2 can be provided with a material inlet, a standby port, a liquid level meter port and an observation port (not shown in the drawings).

[0030] As shown in the drawings, Figure 4 , Figure 5 The outer bottom plate 3 is provided with a plurality of outer lower triangular ribs 10 between the tank body 1 and the outer bottom plate 3, which can improve the connection strength and reliability.

[0031] The above description is an explanation of the present application, not a limitation of the present application. The present application can be modified in any form without departing from the spirit of the present application.

Claims

1. A plastic storage tank, comprising a tank body (1), a top cover (2), and a tank bottom, characterized in that: The bottom of the tank is provided with several discharge channels (5), which are interconnected. The bottom of the tank body (1) is provided with an outlet that connects to the discharge channels (5). The bottom of the tank is a double-layer structure, including an outer bottom plate (3) and an inner bottom plate (4). Several discharge channels (5) are provided on the inner bottom plate (4), which is inclined downward toward the discharge channels (5).

2. The plastic storage tank according to claim 1, characterized in that: Several fan-shaped inner bottom plates (4) are provided on the inner side of the outer bottom plate (3). The adjacent inner bottom plates (4) have a distance between their corresponding sides to form a discharge trough (5). Several discharge troughs (5) converge and connect in the center of the outer bottom plate (3).

3. The plastic storage tank according to claim 1, characterized in that: Each inner bottom plate (4) faces the same discharge trough (5) and slopes downward in the same direction; or, each inner bottom plate (4) slopes downward at the convergence point of each discharge trough (5); or, each inner bottom plate (4) faces different discharge troughs (5) and slopes downward in different directions; the downward slope angle α of the inner bottom plate (4) is 1 to 5°.

4. The plastic storage tank according to claim 1, characterized in that: The bottom of the tank (1) is provided with a drain outlet that connects to the discharge trough (5).

5. The plastic storage tank according to claim 1, characterized in that: The tank body (1) is integrally wound using PPH; the tank body (1) is fitted with several clamps (6) on its outer periphery, and several vertical ribs (7) are provided on the inner wall of the tank body (1), and several inner triangular ribs (8) are provided between adjacent vertical ribs (7).

6. The plastic storage tank according to claim 1, characterized in that: The top cover (2) includes a first cover body (21) and a second cover body (22), which are fixedly connected by fasteners; a number of outer upper triangular ribs (9) are provided between the top cover (2) and the top of the tank body (1); the top cover (2) has a material inlet, a spare port, a level gauge port and an observation port.

7. The plastic storage tank according to claim 1, characterized in that: A slot (31) is provided on the bottom of the tank, and the bottom end of the tank body (1) is inserted into the slot (31); the groove depth h of the slot (31) is 10-25mm; several outer lower triangular ribs (10) are provided between the bottom end of the tank body (1) and the bottom of the tank.