Innocent treatment equipment for waste liquid in chemical safety production

Abstract

The invention relates to the field of chemical waste liquid treatment, in particular to harmless waste liquid treatment equipment in chemical safety production, which comprises a treatment tank and an electric stirring shaft, an electric stirring shaft is mounted in the middle in the treatment tank; an annular flow channel is formed between the interior of the treatment tank and the electric stirring shaft; the device further comprises a mounting frame, a telescopic driving piece, a mounting plate and a loading cylinder. The mounting frame is arranged on the side surface of the treatment tank; a telescopic driving part is mounted on the mounting frame; the telescopic end of the telescopic driving part is connected with a loading cylinder through a mounting plate, and the loading cylinder is used for loading a catalyst; the lower half part of the loading cylinder is a mesh part; the mesh part of the loading cylinder is positioned at the annular runner; according to the invention, the stirred waste liquid orderly flows along the annular flow channel, and the loading cylinder and the mesh cylinder filled with the catalyst are positioned at the annular flow channel, so that the waste liquid can orderly flow through the loading cylinder and the mesh cylinder filled with the catalyst, and the waste liquid is in full contact with the catalyst.

Description

Technical Field

[0001] The present invention relates to the field of chemical waste liquid treatment, and particularly to a harmless treatment device for waste liquid in chemical safety production. Background Art

[0002] In the process of chemical production, a large amount of waste liquid is generated. The water quality of chemical waste liquid is complex, containing various solid and liquid impurities, and needs to be treated through various processes and discharged after reaching the standard. Among them, adding a catalyst to the waste liquid can accelerate the degradation of organic matter in the waste liquid.

[0003] For example, Chinese Patent with the publication number CN119370927A discloses an organic chemical wastewater purification treatment device, which makes the contact between the catalyst and the wastewater more sufficient by designing a deformable mesh bag, but it has the following defects: 1. Since the container containing the catalyst moves in a circular trajectory in the waste liquid, only the waste liquid near the circular trajectory can fully contact the catalyst, resulting in insufficient catalysis of the waste liquid in other areas. 2. There are impurities in the waste liquid, which are easily attached to the container containing the catalyst, making the catalyst unable to fully contact the waste liquid. Summary of the Invention

[0004] In order to overcome the defect that the existing chemical waste liquid treatment equipment cannot make the catalyst fully contact the waste liquid, the present invention provides a harmless treatment device for waste liquid in chemical safety production.

[0005] The technical implementation scheme of the present invention is: a harmless treatment device for waste liquid in chemical safety production, including a treatment tank and an electric drive stirring shaft; an electric drive stirring shaft is installed in the middle of the treatment tank; an annular flow channel is formed between the inside of the treatment tank and the electric drive stirring shaft; it also includes a mounting frame, a telescopic driving member, a mounting plate and a loading cylinder; the mounting frame is arranged on the side of the treatment tank; a telescopic driving member is installed on the mounting frame; the telescopic end of the telescopic driving member is connected with a loading cylinder through the mounting plate, and the loading cylinder is used for loading the catalyst; the lower half of the loading cylinder is a mesh part; the mesh part of the loading cylinder is located at the annular flow channel.

[0006] Furthermore, a rotary driving member is installed on the mounting plate; the rotary end of the rotary driving member is connected with the loading cylinder.

[0007] Furthermore, a connecting rod is installed on the mounting frame; the lower end of the connecting rod is connected with a mesh cylinder through a connecting seat, and the mesh cylinder is used for loading the catalyst; the connecting rod is rotatably connected with the connecting seat; the mesh cylinder is located inside the mesh part.

[0008] Furthermore, a through groove is opened on the bottom plate of the loading cylinder, and the through groove is adapted to the shape of the mesh cylinder.

[0009] Furthermore, the height of the annular flow channel is equal to the sum of the height of the mesh portion and the height of the mesh cylinder.

[0010] Furthermore, the connecting seat has a tapered surface structure that is narrower at the top and wider at the bottom.

[0011] Furthermore, two vertical rows of stirring rods are symmetrically arranged on the connecting rod.

[0012] Furthermore, the mesh cylinder is in the shape of a flat strip.

[0013] Furthermore, the vertical span of each vertical row of stirring rods is the same as the height of the mesh portion.

[0014] Furthermore, the connecting seat and the mesh cylinder are detachably connected.

[0015] The present invention has the following advantages: The present invention enables the agitated waste liquid to flow orderly along the annular flow channel. At this time, the loading cylinder and the mesh cylinder filled with the catalyst are located at the annular flow channel, enabling the waste liquid to flow orderly through the loading cylinder and the mesh cylinder filled with the catalyst, allowing the waste liquid to come into full contact with the catalyst. Compared with the prior art where the container filled with the catalyst moves in a circular trajectory in the waste liquid, only the waste liquid near the circular trajectory can come into full contact with the catalyst, resulting in insufficient catalysis of the waste liquid in other areas. The present invention adopts the method of allowing the waste liquid to flow orderly through the catalyst, ensuring that all the waste liquid can come into contact with the catalyst.

[0016] The present invention allows the rotary drive member to drive the loading cylinder to rotate. Since the waste liquid flows orderly along the annular flow channel, and the part of the loading cylinder facing the waste liquid flow direction is constantly changing during rotation, and the outer surface of the loading cylinder is an arc surface, the impurities in the waste liquid will be washed away as the waste liquid flows, and cannot stably adhere to the outer surface of the loading cylinder, thereby reducing the adhesion of impurities in the waste liquid to the loading cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shows a three-dimensional structural schematic diagram of the waste liquid harmless treatment equipment in the chemical industrial safety production of the present invention; Figure 2 Shows a three-dimensional internal structural schematic diagram of the treatment tank of the present invention; Figure 3 Shows a partial three-dimensional structural schematic diagram of the waste liquid harmless treatment equipment in the chemical industrial safety production of the present invention; Figure 4 Shows a separation state display diagram of the loading cylinder and the mesh cylinder of the present invention; Figure 5 Shows a state diagram when the mesh cylinder of the present invention is exposed.

[0018] Meanings of the reference numerals in the figures: 1 - treatment tank, 101 - annular flow channel, 2 - electric drive stirring shaft, 3 - mounting bracket, 4 - telescopic drive member, 5 - mounting plate, 6 - loading cylinder, 61 - mesh portion, 62 - through groove, 7 - rotary drive member, 8 - connecting rod, 9 - stirring rod, 10 - connecting seat, 11 - mesh cylinder. Detailed implementation manners

[0019] Reference to an embodiment herein means that a specific feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0020] Embodiment 1: A waste liquid harmless treatment device in chemical industrial safety production, as Figures 1 - 5 shown, includes a treatment tank 1 and an electric drive stirring shaft 2; the electric drive stirring shaft 2 is composed of a stirring shaft and a motor for driving the stirring shaft to rotate, and the motor is installed on the cross plate at the upper end of the treatment tank 1; an annular flow channel 101 is formed between the interior of the treatment tank 1 and the electric drive stirring shaft 2; it further includes a mounting bracket 3, a telescopic drive member 4, a mounting plate 5, and a loading cylinder 6; the mounting bracket 3 is arranged on the side of the treatment tank 1; a telescopic drive member 4 is installed at the upper end of the mounting bracket 3, and the telescopic drive member 4 is an electric drive push rod; the telescopic end of the telescopic drive member 4 is connected with a loading cylinder 6 through a mounting plate 5; the lower half of the loading cylinder 6 is a mesh portion 61.

[0021] A rotary drive member 7 is installed on the mounting plate 5, and the rotary drive member 7 is a DD motor; the rotary end of the rotary drive member 7 is connected with the loading cylinder 6.

[0022] A connecting rod 8 is installed at the upper end of the mounting bracket 3; the lower end of the connecting rod 8 is connected with a mesh cylinder 11 through a connecting seat 10; the connecting rod 8 is rotatably connected with the connecting seat 10; the mesh cylinder 11 is located inside the mesh portion 61, and the connecting rod 8 passes through the middle gap of the rotary drive member 7.

[0023] A through groove 62 is formed in the bottom plate of the loading cylinder 6, and the through groove 62 is adapted to the shape of the mesh cylinder 11.

[0024] The height of the annular flow channel 101 is equal to the sum of the height of the mesh portion 61 and the height of the mesh cylinder 11.

[0025] The connecting seat 10 is a conical surface structure with a narrow upper part and a wide lower part, so that when the mesh cylinder 11 and the connecting seat 10 move upward, the catalyst in the loading cylinder 6 is pushed away by the conical surface of the connecting seat 10.

[0026] In this embodiment, granular catalysts are pre-loaded in the loading cylinder 6 and the mesh cylinder 11, and the amount of catalyst in the loading cylinder 6 just fills the height of the mesh portion 61. The waste liquid is injected into the treatment tank 1, and the electric drive stirring shaft 2 is started to stir the waste liquid in the treatment tank 1. Since the electric drive stirring shaft 2 and the inner wall of the treatment tank 1 form an annular flow channel 101, the stirred waste liquid flows orderly along the annular flow channel 101. At this time, the loading cylinder 6 and the mesh cylinder 11 filled with catalyst are located at the annular flow channel 101, so that the waste liquid can flow orderly through the loading cylinder 6 and the mesh cylinder 11 filled with catalyst, enabling the waste liquid to be in full contact with the catalyst. Compared with the prior art where a container filled with catalyst makes a circular trajectory movement in the waste liquid, only the waste liquid near the circular trajectory can be in full contact with the catalyst, resulting in the problem of insufficient catalysis of the waste liquid in other areas. The present invention adopts the method of allowing the waste liquid to flow orderly through the catalyst to ensure that all the waste liquid can contact the catalyst.

[0027] Furthermore, in order to reduce the adhesion of impurities in the waste liquid to the loading cylinder 6, a rotary drive member 7 is added to drive the loading cylinder 6 to rotate. Since the waste liquid flows orderly along the annular flow channel 101, and the part of the loading cylinder 6 facing the waste liquid flow direction is constantly changing during rotation, and the outer surface of the loading cylinder 6 is an arc surface, the impurities in the waste liquid will be washed away along with the waste liquid flow and cannot stably adhere to the outer surface of the loading cylinder 6, thereby reducing the adhesion of impurities in the waste liquid to the loading cylinder 6.

[0028] Furthermore, in order to solve the problem that the internal catalyst cannot be fully contacted with the waste liquid, a double-layer loading structure of the loading cylinder 6 and the mesh cylinder 11 is designed. After the waste liquid flows along the annular flow channel 101 for a period of time, the telescopic drive member 4 is controlled to drive the mounting plate 5 and the loading cylinder 6 to move upward, so that the mesh portion 61 moves upward, while the height position of the mesh cylinder 11 remains unchanged, and the mesh cylinder 11 passes through the through groove 62 and is exposed, as Figure 5 shown, so that the catalyst loaded in the mesh cylinder 11 is exposed, realizing that the catalyst located inside can be fully contacted with the waste liquid.

[0029] Furthermore, considering that there will be differences in the amount of waste liquid to be treated, when the height of the waste liquid in the treatment tank 1 does not exceed the height of the mesh portion 61, the mesh cylinder 11 is located inside the mesh portion 61 in the initial state. When the height of the waste liquid in the treatment tank 1 exceeds the height of the mesh portion 61, the telescopic drive member 4 is controlled to drive the mounting plate 5 and the loading cylinder 6 to move upward, so that the mesh cylinder 11 passes through the through groove 62 and is exposed, so that the overall height of the length of the mesh cylinder 11 exposed from the mesh portion 61 and superimposed on the mesh portion 61 matches the height of the waste liquid in the treatment tank 1. Thus, by controlling the exposure of the mesh cylinder 11, the vertical distribution height of the catalyst can be adjusted and adapted to the amount of waste liquid to be treated, maximizing the utilization rate of the catalyst.

[0030] Among them, the mesh cylinder 11 moves up and down in the through groove 62. The mesh cylinder 11 will rotate together with the loading cylinder 6. When the mesh cylinder 11 moves upward in the through groove 62, the edge of the through groove 62 will scrape the outer surface of the mesh cylinder 11 to scrape off the impurities attached to the outer surface of the mesh cylinder 11, preventing the impurities from entering the loading cylinder 6 and reducing the subsequent maintenance workload.

[0031] Embodiment 2: On the basis of Embodiment 1, as Figures 1 - 5 shown, two vertically arranged rows of stirring rods 9 are symmetrically installed on the outer circumferential surface of the lower part of the connecting rod 8.

[0032] The mesh cylinder 11 is in the shape of a flat long strip.

[0033] The vertical span of each row of the stirring rods 9 is the same as the height of the mesh part 61.

[0034] The connecting seat 10 and the mesh cylinder 11 are detachably connected, and workers can remove the mesh cylinder 11 from the connecting seat 10 to replace the catalyst inside the mesh cylinder 11.

[0035] In this embodiment, when the height of the waste liquid in the treatment tank 1 exceeds the height of the mesh part 61, the mesh cylinder 11 will pass through the through groove 62 and expose to adapt to the height of the waste liquid. At this time, by adding the stirring rods 9, when the mesh cylinder 11 passes through the through groove 62 and exposes, the stirring rods 9 can reach the inner position of the mesh part 61, so that during the rotation of the loading cylinder 6 driven by the rotation driving member 7, the catalyst in the loading cylinder 6 can be stirred by the stirring rods 9 during the rotation, thereby increasing the contact between the catalyst in the loading cylinder 6 and the waste liquid.

[0036] Furthermore, the mesh cylinder 11 is designed to be in the shape of a flat long strip, so that the catalyst in the mesh cylinder 11 can be distributed in a flat shape, which can not only reduce the thickness of the catalyst in the mesh cylinder 11, make the catalyst spread out and fully contact with the waste liquid, but also make the distribution position span of the catalyst in the mesh cylinder 11 larger, and fully contact with the waste liquid flowing in the annular flow channel 101 to the greatest extent.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A harmless treatment device for chemical waste liquid, comprising a treatment tank (1) and an electrically driven stirring shaft (2); an electrically driven stirring shaft (2) is installed in the middle of the treatment tank (1); an annular flow channel (101) is formed between the interior of the treatment tank (1) and the electrically driven stirring shaft (2); characterized in that: It also includes a mounting frame (3), a telescopic driving member (4), a mounting plate (5) and a loading cylinder (6); the mounting frame (3) is arranged on the side of the processing tank (1); a telescopic driving member (4) is mounted on the mounting frame (3); the telescopic end of the telescopic driving member (4) is connected with a loading cylinder (6) through the mounting plate (5), and the loading cylinder (6) is used for loading the catalyst; the lower half of the loading cylinder (6) is a mesh portion (61); the mesh portion (61) of the loading cylinder (6) is located at the annular flow channel (101).

2. The chemical waste liquid harmless treatment equipment according to claim 1, characterized in that: A rotary driving member (7) is mounted on the mounting plate (5); the rotary end of the rotary driving member (7) is connected with the loading cylinder (6).

3. The chemical waste liquid harmless treatment equipment according to claim 2, characterized in that: A connecting rod (8) is mounted on the mounting frame (3); the lower end of the connecting rod (8) is connected with a mesh cylinder (11) through a connecting seat (10), and the mesh cylinder (11) is used for loading the catalyst; the connecting rod (8) is rotatably connected with the connecting seat (10); the mesh cylinder (11) is located inside the mesh portion (61).

4. A chemical waste liquid harmless treatment device according to claim 3, characterized in that: A through groove (62) is formed in the bottom plate of the loading cylinder (6), and the through groove (62) is adapted to the shape of the mesh cylinder (11).

5. A chemical waste liquid harmless treatment device according to claim 4, characterized in that: The height of the annular flow channel (101) is equal to the sum of the height of the mesh portion (61) and the height of the mesh cylinder (11).

6. A chemical waste liquid harmless treatment device according to any one of claims 3-5, characterized in that: The connecting seat (10) is a tapered surface structure with a narrow upper part and a wide lower part.

7. A chemical waste liquid harmless treatment device according to claim 5, characterized in that: Two vertically arranged rows of stirring rods (9) are symmetrically mounted on the connecting rod (8).

8. A chemical waste liquid harmless treatment device according to claim 7, characterized in that: The mesh cylinder (11) is flat and strip-shaped.

9. The harmless treatment equipment for chemical waste liquid according to claim 7, wherein: The vertical span of each row of the stirring rods (9) is the same as the height of the mesh portion (61).

10. The harmless treatment equipment for chemical waste liquid according to claim 3, characterized in that: The connecting seat (10) and the mesh cylinder (11) are detachably connected.

Images