Separation equipment for ammonia distillation waste liquid treatment

Abstract

The utility model relates to the technical field of ammonia distillation waste liquid treatment, and discloses separation equipment for ammonia distillation waste liquid treatment, which comprises a bearing plate, a disc type separation structure is arranged on the bearing plate, the disc type separation structure comprises a support frame and a filter disc, the filter disc is fixedly arranged on the support frame, the filter disc comprises a disc body, and the disc body is fixedly arranged on the bearing plate. Fixing rings are fixedly connected to the two sides of the disc body, and mounting blocks are fixedly connected to the fixing rings; the supporting frame comprises a supporting disc, mounting rings are fixedly connected to the two sides of the supporting disc, and the mounting blocks are fixedly connected to the mounting rings in a sleeving mode. According to the utility model, the disc type dehydrator is adopted to replace a traditional plate-and-frame filter press, so that continuous operation can be realized, the dehydration efficiency is greatly improved, the water content of the alkaline residues is effectively reduced, and the water content of the alkaline residues can be controlled to meet the stacking requirement of the alkaline residues.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia evaporation waste liquid treatment, in particular to a separation device for ammonia evaporation waste liquid treatment. Background Art

[0002] Alkali slag is the alkaline residue discharged during the alkali production process of the ammonia-soda process. It has the characteristics of small particle size, slow particle settling rate, colloidal properties, high moisture content that is difficult to dehydrate, and a high pH value of about 10-12. At present, alkali plants mostly use on-site stacking to treat alkali slag, and it is generally believed that it has no recycling value.

[0003] The main components of the alkali slag produced during the production of soda ash by the ammonia-soda process are CaCO3, CaCl2, CaSO4, etc. The main treatment method is storage, which has many problems. For example, it is extremely difficult to carbonize in the air, and is prone to collapse and landslides, which affect the survival of the enterprise and cause environmental pollution and property losses.

[0004] Alkali residue products have low added value, limited application areas, and have not been produced and promoted on a large scale. The problem of alkali residue discharge has not yet been ideally solved. Currently, the industry uses plate and frame filter presses to reduce the moisture content of alkali residue. However, this solution has disadvantages such as large footprint, low degree of automation, and high unit production cost. Therefore, in order to replace the existing plate and frame filter presses and reduce the moisture content of alkali residue, a disc dehydration method is used to separate the waste liquid from the alkali residue, realizing a low-cost separation process. A separation equipment for treating ammonia waste liquid is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a separation device for treating ammonia waste liquid.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a separation device for treating ammonia waste liquid, comprising a load-bearing plate, on which a disc-type separation structure is provided, the disc-type separation structure comprising a support frame and a filter disc, the filter disc being fixedly mounted on the support frame, the filter disc comprising a disc body, both sides of the disc body being fixedly connected with a fixing ring, and the fixing ring being fixedly connected with a mounting block; the support frame comprising a support disc, both sides of the support disc being fixedly connected with a mounting ring, the mounting block being sleeved and fixedly connected to the mounting ring.

[0007] As a further description of the above technical solution:

[0008] A bracket is fixedly connected to the middle of the support plate, and a main shaft is fixedly connected to the bracket. The main shaft drives the support frame and the filter plate to rotate.

[0009] As a further description of the above technical solution:

[0010] The support frames and the filter discs are provided in multiple groups, and the multiple groups of support frames and the filter discs are arranged in a staggered manner.

[0011] As a further description of the above technical solution:

[0012] The load-bearing plate is fixedly connected to a second support seat. One end of the main shaft is rotatably connected to the second support seat. The main shaft is fixedly connected to a driving pulley on a side close to the second support seat.

[0013] As a further description of the above technical solution:

[0014] The load-bearing plate is fixedly connected to a first support seat, one side of the disc-type separation structure is fixedly connected to a conical cover, the conical cover is fixedly connected to a liquid inlet barrel, and the liquid inlet barrel is rotatably connected to the first support seat.

[0015] As a further description of the above technical solution:

[0016] The liquid inlet barrel is a hollow pipe structure and is connected to the middle part of the disc-type separation structure.

[0017] As a further description of the above technical solution:

[0018] A liquid-blocking cover is fixedly connected to the load-bearing plate. The liquid-blocking cover is sleeved on the outside of the disc-type separation structure. A collecting bucket is provided at the bottom of the liquid-blocking cover.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the present invention, by adopting a disc dehydrator to replace the traditional plate and frame filter press, continuous operation can be achieved, the dehydration efficiency is greatly improved, and the moisture content of the alkali residue is effectively reduced. The moisture content of the alkali residue can be controlled to meet the requirements for alkali residue stacking.

[0021] 2. In the present invention, the disc dehydrator occupies a small space, has a simple process flow, and is easy to realize industrial production;

[0022] 3. During operation, after the waste liquid enters the equipment, solid-liquid separation is achieved under the action of centrifugal force, the liquid is collected, and the impurities remain in the filter disc. The separation effect is good and it can prevent liquid splashing. The collected liquid can be guided to subsequent processing links or directly recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a separation device for treating ammonia waste liquid proposed in the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of a separation device for treating ammonia waste liquid proposed in the present invention;

[0025] Figure 3 Schematic diagram of the drive structure;

[0026] Figure 4 for Figure 3 Exploded diagram of local structure;

[0027] Figure 5 It is a schematic diagram of the exploded structure of the support frame and the filter disc;

[0028] Figure 6 Schematic diagram of the connection between the support frame and the filter plate.

[0029] Legend:

[0030] 1. Load-bearing plate; 2. First support seat; 3. Second support seat; 4. Main shaft; 5. Support frame; 501. Support plate; 502. Bracket; 503. Mounting ring; 6. Filter plate; 601. Plate body; 602. Fixed ring; 603. Mounting block; 7. Conical cover; 8. Bottom cover; 9. Liquid shield; 10. Drive pulley; 11. Liquid inlet barrel. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figures 1-6 The utility model provides an embodiment: a separation device for treating ammonia waste liquid, comprising a load-bearing plate 1, on which a disc-type separation structure is provided, the disc-type separation structure comprising a support frame 5 and a filter disc 6, the filter disc 6 being fixedly mounted on the support frame 5, the filter disc 6 comprising a disc body 601, fixedly connected on both sides of the disc body 601 with a fixing ring 602, and fixedly connected to the fixing ring 602 with a mounting block 603; the support frame 5 comprises a support disc 501, on both sides of the support disc 501 with a mounting ring 503 fixedly connected, the mounting block 603 is sleeved and fixedly connected to the mounting ring 503; the diameter of the support disc 501 should be smaller than the diameter of the filter disc 6, so that the waste liquid has a larger centrifugal force at the filter disc 6 during the rotation process.

[0033] A bracket 502 is fixedly connected to the center of the support disc 501. A spindle 4 is fixedly connected to the bracket 502, which drives the support frame 5 and filter disc 6 to rotate. The filter disc 6 should be made of a material suitable for treating ammonia waste liquid, such as a corrosion-resistant metal alloy or plastic. The disc body 601 should be designed with multiple small holes for liquid to pass through, while a retaining ring 602 and a mounting block 603 are used to secure the filter disc 6 to the support frame 5. The bracket 502 on the spindle 4 is used to secure the support frame 5 so that it rotates with the spindle 4. The drive pulley 10 can be connected to an external power source, such as a motor, via a belt.

[0034] Multiple sets of support frames 5 and filter discs 6 are provided, staggered between them. These sets should be staggered at regular intervals to increase contact area and improve separation efficiency. This staggered arrangement also helps evenly distribute the liquid. A bottom cover 8 is fixedly attached to the side of the disc-type separation structure facing away from the conical cover 7, sealing one end of the disc-type separation structure.

[0035] The load-bearing plate 1 is fixedly connected to the second support base 3 . One end of the main shaft 4 is rotatably connected to the second support base 3 . The main shaft 4 is fixedly connected to a driving pulley 10 on a side close to the second support base 3 .

[0036] A first support seat 2 is fixedly connected to the load-bearing plate 1, a conical cover 7 is fixedly connected to one side of the disc-type separation structure, a liquid inlet barrel 11 is fixedly connected to the conical cover 7, and the liquid inlet barrel 11 is rotatably connected to the first support seat 2; the liquid inlet barrel 11 is a hollow pipe structure and is connected to the middle part of the disc-type separation structure. During operation, waste liquid is added to the separation equipment from the middle part of the liquid inlet barrel 11.

[0037] A liquid-blocking cover 9 is fixedly connected to the load-bearing plate 1, and the liquid-blocking cover 9 is sleeved on the outside of the disc-type separation structure. A collecting bucket is provided at the bottom of the liquid-blocking cover 9; the liquid-blocking cover 9 should cover the entire disc-type separation structure to prevent liquid from splashing, and the collecting bucket at the bottom of the liquid-blocking cover 9 is used to collect the separated liquid.

[0038] Working principle: The waste liquid first enters the equipment through the liquid inlet barrel 11. The liquid inlet barrel is a hollow pipe structure, which is connected to the central area of ​​the disc separation structure, so that the waste liquid can be directly transported to the core position of the separation device. The external motor drives the drive pulley 10 to rotate through a belt drive, and then drives the main shaft 4 to rotate, driving the support frame 5 and the filter disc 6 fixed to it to rotate together. Since there are multiple small holes on the filter disc 6, as they rotate at high speed, the waste liquid will be thrown out under the action of centrifugal force. In this process, the liquid is separated, and the heavier impurities remain in the filter disc 6. The thrown liquid will be intercepted by the liquid blocking cover 9 and flow along its inner wall to the collection bucket at the bottom for collection. The separated liquid eventually converges in the collection bucket at the bottom and is guided to the subsequent processing link or directly recycled through the corresponding pipe or outlet.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A separation device for treating ammonia waste liquid, comprising a bearing plate (1), characterized in that: A disc-type separation structure is provided on the load-bearing plate (1), the disc-type separation structure comprising a support frame (5) and a filter disc (6), the filter disc (6) being fixedly mounted on the support frame (5), the filter disc (6) comprising a disc body (601), fixing rings (602) being fixedly connected to both sides of the disc body (601), and a mounting block (603) being fixedly connected to the fixing ring (602); The support frame (5) comprises a support plate (501), both sides of the support plate (501) are fixedly connected with mounting rings (503), and the mounting block (603) is sleeved and fixedly connected to the mounting rings (503).

2. The separation device for treating ammonia waste liquid according to claim 1, characterized in that: A bracket (502) is fixedly connected to the middle of the support disc (501), and a main shaft (4) is fixedly connected to the bracket (502). The main shaft (4) drives the support bracket (5) and the filter disc (6) to rotate.

3. The separation device for treating ammonia waste liquid according to claim 2, characterized in that: The support frames (5) and the filter discs (6) are provided in multiple groups, and the multiple groups of the support frames (5) and the filter discs (6) are arranged in a staggered manner.

4. The separation device for treating ammonia waste liquid according to claim 3, characterized in that: A second support seat (3) is fixedly connected to the load-bearing plate (1). One end of the main shaft (4) is rotatably connected to the second support seat (3). A driving pulley (10) is fixedly connected to the main shaft (4) on a side close to the second support seat (3).

5. The separation device for treating ammonia waste liquid according to claim 4, characterized in that: A first support seat (2) is fixedly connected to the load-bearing plate (1), a conical cover (7) is fixedly connected to one side of the disc-type separation structure, a liquid inlet barrel (11) is fixedly connected to the conical cover (7), and the liquid inlet barrel (11) is rotatably connected to the first support seat (2).

6. The separation device for treating ammonia waste liquid according to claim 5, characterized in that: The liquid inlet barrel (11) is a hollow pipe structure and is connected to the middle of the disc-type separation structure.

7. The separation device for treating ammonia waste liquid according to claim 6, characterized in that: A liquid-blocking cover (9) is fixedly connected to the load-bearing plate (1), the liquid-blocking cover (9) is sleeved on the outside of the disc-type separation structure, and a collecting bucket is provided at the bottom of the liquid-blocking cover (9).

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