Negative pressure reaction tank for waste acid dilution treatment

Abstract

The utility model relates to the technical field of negative pressure reaction tanks, in particular to a negative pressure reaction tank for waste acid dilution treatment. The negative pressure reaction tank for waste acid dilution treatment aims at solving the technical problems that in the prior art, a diluent is prone to being accumulated at one position, reaction of the diluent and waste acid is not facilitated, and residual water cannot be drained after cleaning. According to the technical scheme, the negative pressure reaction tank for waste acid dilution treatment comprises a U-shaped frame, the negative pressure reaction tank further comprises a bearing seat, a rotating shaft, a negative pressure reaction tank body, an upper cover, a liquid inlet, a stirring and dispersing assembly, a limiting ring, a filter screen assembly, a water distributor and a diluent inlet pipe. According to the waste acid diluting device, the dispersing mechanism is used for dispersing falling diluents and preventing the diluents from being accumulated, the stirring mechanism is matched, so that the diluents and waste acid can react quickly and fully, the diluting time is effectively shortened, the working efficiency is higher, the reaction tank is designed to be turnable, residual water is convenient to drain after cleaning, and the waste acid diluting device is suitable for large-scale popularization and application. And dryness and cleanness in the reaction tank are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure reaction tanks, in particular to a negative pressure reaction tank for waste acid dilution treatment. Background Art

[0002] Acidic wastewater will be discharged from chemical industry, chemical fiber, acid making, electroplating, oil refining and metal processing plant pickling workshop. If these wastewaters are discharged into the environment without treatment, it will not only acidify the water or soil, causing harm to the ecological environment, but also waste a lot of resources. In recent years, many countries have formulated strict emission standards. Waste acid is mainly treated by direct dilution, chemical treatment and recycling. For waste acid with low concentration, direct dilution method is generally used. In order to keep the positive pressure inside the tank under any working condition, the equipment used for waste acid dilution treatment is a negative pressure reaction tank. However, the existing negative pressure reaction tank has a single feeding position, and the diluent is easy to accumulate in one place, which is not conducive to the reaction of the diluent and the waste acid. The dilution takes a long time, and the reaction tank cannot be turned over. After cleaning, the residual water cannot be drained, and the cleanliness of the reaction tank cannot be guaranteed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a negative pressure reaction tank for waste acid dilution treatment, which aims to solve the technical problems in the prior art that the diluent is easily accumulated in one place, which is not conducive to the reaction between the diluent and the waste acid, and the residual water cannot be drained after cleaning.

[0004] The technical scheme of the utility model is: a negative pressure reaction tank for waste acid dilution treatment, comprising a U-shaped frame; also comprising a bearing seat, a rotating shaft, a negative pressure reaction tank body, an upper cover, a liquid inlet, a stirring and dispersing component, a limiting ring, a filter assembly, a water distributor and a diluent inlet pipe; the upper end of the U-shaped frame is fixedly connected with a bearing seat symmetrically distributed on the left and right; a rotating shaft is installed in the bearing seat; the negative pressure reaction tank body is fixedly connected between the rotating shaft and another rotating shaft; a detachable upper cover is installed on the upper end of the negative pressure reaction tank body; a liquid inlet is installed in the middle of the upper end of the upper cover; a stirring and dispersing component is rotatably connected in the negative pressure reaction tank body; a limiting ring is fixedly connected to the upper side of the negative pressure reaction tank body; a filter assembly is movably connected to the upper end of the limiting ring; a water distributor connected to the liquid inlet is installed at the lower end of the upper cover; a diluent inlet pipe extending downward through the filter assembly is installed in the upper cover.

[0005] Preferably, the U-shaped frame is placed on a flat ground, the filter assembly is placed on the upper end of the limiting ring, and then the upper cover is closed. The waste acid enters the water distributor from the liquid inlet and is dispersed, and is evenly sprayed on the filter assembly. After preliminary filtration, it falls into the negative pressure reaction tank body under the action of gravity. The stirring and dispersing assembly is started to stir the acid liquid. At the same time, the diluent is added from the diluent inlet pipe. The diluent and the acid liquid are fully stirred and diluted, and finally the diluted acid liquid is discharged. When cleaning, clean water is added to the negative pressure reaction tank body, and then the rotating shaft in the bearing seat drives the negative pressure reaction tank body to flip over, so that the water in the negative pressure reaction tank body is fully drained.

[0006] Preferably, the stirring and dispersing assembly includes a stirring shaft; a dispersion plate is fixedly connected to the upper end of the stirring shaft; connecting rings are fixedly connected to the outer side of the stirring shaft with equal distances; and annular stirring rods are fixedly connected to the outer side of the connecting ring with equal distances. The diluent is evenly dispersed through the dispersion plate to avoid accumulation. At the same time, the stirring rod improves the fluidity of the waste acid so that the waste acid and the diluent can react better.

[0007] Preferably, the filter assembly includes a filter body; a support seat symmetrically distributed frontally and rearwardly is fixedly connected to the upper end of the filter body; a groove is provided at the upper end of the support seat; a sealing gasket fixedly connected in the groove and abutting against the lower end of the upper cover; a left-right symmetrical slot is provided on the filter body, and the filter body plays a filtering role to reduce solid impurities in the waste acid.

[0008] Preferably, a coupling and a first motor are installed in sequence at the lower end of the stirring shaft; reinforcement rods symmetrically distributed on the left and right are fixedly connected between the first motor and the negative pressure reaction tank body, and the coupling is used to transmit the power of the first motor to the stirring shaft to drive the stirring shaft to rotate.

[0009] Preferably, a mounting plate is installed at the right end of the U-shaped frame; a second motor is fixedly connected to the upper end of the mounting plate; the output shaft of the second motor is fixedly connected to the rotating shaft, and is used to provide the power required for the rotation of the negative pressure reaction tank body, thereby realizing the flipping operation of the negative pressure reaction tank body, which is convenient for draining the moisture in the negative pressure reaction tank body.

[0010] Preferably, the upper end of the limit ring is fixedly connected with a card block which is symmetrically distributed on the left and right; the card block and the card slot are engaged and connected to position the filter assembly, ensure the accuracy of the installation position of the filter assembly, and ensure that the diluent inlet pipe can be smoothly inserted into the filter assembly.

[0011] Beneficial effects of the utility model:

[0012] 1. The diluent that falls is dispersed by using the dispersing mechanism to avoid diluent accumulation. The diluent and waste acid can react quickly and fully with the stirring mechanism, which effectively shortens the dilution time and improves the work efficiency. The reaction tank is reversible to drain the residual water after cleaning, ensuring the dryness and cleanliness of the reaction tank.

[0013] 2. The addition of a filter assembly can perform preliminary filtration on the waste liquid, reduce the solid impurities in the waste acid, and reduce the difficulty of waste acid treatment. The waste acid can be evenly dispersed through the use of a water distributor to ensure that the processing volume at each position of the filter assembly is as consistent as possible, and the filter assembly is not prone to partial blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 What is shown is a first three-dimensional structural schematic diagram of a negative pressure reaction tank for waste acid dilution treatment of the utility model;

[0015] Figure 2 What is shown is a schematic diagram of the cross-sectional three-dimensional structure of the negative pressure reaction tank for waste acid dilution treatment of the utility model;

[0016] Figure 3 The three-dimensional structure schematic diagram of the limit ring and filter assembly in the negative pressure reaction tank for waste acid dilution treatment of the utility model is shown;

[0017] Figure 4 What is shown is a three-dimensional structural schematic diagram of the stirring and dispersing component in the negative pressure reaction tank for waste acid dilution treatment of the utility model.

[0018] Explanation of the reference numerals in the accompanying drawings: 1. U-shaped frame; 2. bearing seat; 3. rotating shaft; 4. negative pressure reaction tank body; 5. upper cover; 6. liquid inlet; 7. stirring and dispersing assembly; 71. stirring shaft; 72. dispersion plate; 73. connecting ring; 74. stirring rod; 8. limiting ring; 9. filter assembly; 91. filter body; 92. support seat; 93. groove; 94. sealing gasket; 95. slot; 10. water distributor; 11. diluent inlet pipe; 12. coupling; 13. first motor; 14. reinforcement rod; 15. mounting plate; 16. second motor; 17. block. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1-2The utility model provides an embodiment: a negative pressure reaction tank for waste acid dilution treatment, comprising a U-shaped frame 1; further comprising a bearing seat 2, a rotating shaft 3, a negative pressure reaction tank body 4, an upper cover 5, a liquid inlet 6, a stirring and dispersing component 7, a limiting ring 8, a filter assembly 9, a water distributor 10 and a diluent inlet pipe 11; the upper end of the U-shaped frame 1 is fixedly connected to a bearing seat 2 symmetrically distributed on the left and right; a rotating shaft 3 is installed in the bearing seat 2; a negative pressure reaction tank body 4 is fixedly connected between the rotating shaft 3 and another rotating shaft 3; a detachable upper cover 5 is installed on the upper end of the negative pressure reaction tank body 4; a liquid inlet 6 is installed in the middle of the upper end of the upper cover 5; a rotating shaft 3 is installed in the negative pressure reaction tank body 4 It is connected to a stirring and dispersing component 7; a limiting ring 8 is fixedly connected to the upper side of the negative pressure reaction tank body 4; a filter assembly 9 is movably connected to the upper end of the limiting ring 8; a water distributor 10 connected to the liquid inlet 6 is installed at the lower end of the upper cover 5; a diluent inlet pipe 11 is installed in the upper cover 5 and extends downward through the filter assembly 9; a coupling 12 and a first motor 13 are installed in sequence at the lower end of the stirring shaft 71; a left-right symmetrically distributed reinforcement rod 14 is fixedly connected between the first motor 13 and the negative pressure reaction tank body 4; a mounting plate 15 is installed at the right end of the U-shaped frame 1; a second motor 16 is fixedly connected to the upper end of the mounting plate 15; the output shaft of the second motor 16 is fixedly connected to the rotating shaft 3.

[0021] See also Figure 3 In this embodiment, the filter assembly 9 includes a filter body 91; a support seat 92 symmetrically distributed front and back is fixedly connected to the upper end of the filter body 91; a groove 93 is provided at the upper end of the support seat 92; a sealing gasket 94 abutting against the lower end of the upper cover 5 is fixedly connected in the groove 93; a left-right symmetrical clamping groove 95 is provided on the filter body 91; a clamping block 17 symmetrically distributed left and right is fixedly connected to the upper end of the limiting ring 8; the clamping block 17 is clamped and connected with the clamping groove 95;

[0022] See also Figure 4 In this embodiment, the stirring and dispersing component 7 includes a stirring shaft 71; a dispersing plate 72 is fixedly connected to the upper end of the stirring shaft 71; a connecting ring 73 equidistantly distributed is fixedly connected to the outer side of the stirring shaft 71; and an annular stirring rod 74 equidistantly distributed is fixedly connected to the outer side of the connecting ring 73.

[0023] When working, the steps are as follows:

[0024] The U-shaped frame 1 is placed on a stable ground, the filter body 91 is placed in the negative pressure reaction tank body 4, the block 17 and the slot 95 are aligned and inserted, so that the lower end of the filter body 91 fits with the upper end of the limit ring 8, and then the upper cover 5 is covered, the sealing gasket 94 in the groove 93 at the upper end of the support seat 92 is against the upper cover 5, and the waste acid enters the water distributor 10 from the liquid inlet 6 and is dispersed, and is evenly sprayed on the filter body 91. After preliminary filtration, it falls into the negative pressure reaction tank body 4 under the action of gravity, and the first motor 13 is started. At the coupling 12 Under the action, power is transmitted to the stirring shaft 71, and the stirring rod 74 stirs the acid liquid. At the same time, the diluent is added from the diluent inlet pipe 11, and the diluent falls into the upper end of the dispersion plate 72 and is dispersed, fully stirred with the acid liquid, diluted, and finally the diluted acid liquid is discharged. When cleaning, add clean water to the negative pressure reaction tank body 4, and then start the second motor 16 at the upper end of the mounting plate 15 to drive the rotating shaft 3 in the bearing seat 2 to drive the negative pressure reaction tank body 4 to flip, so that the water in the negative pressure reaction tank body 4 is fully drained.

[0025] Through the above steps, the falling diluent is dispersed by using the dispersion mechanism to avoid diluent accumulation, and the diluent and waste acid can react quickly and fully with the stirring mechanism, which effectively shortens the dilution time and improves work efficiency. The reaction tank adopts a reversible design to facilitate draining of residual water after cleaning, ensuring that the reaction tank is dry and clean.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A negative pressure reaction tank for waste acid dilution treatment, comprising a U-shaped frame (1); characterized in that: The invention also comprises a bearing seat (2), a rotating shaft (3), a negative pressure reaction tank body (4), an upper cover (5), a liquid inlet (6), a stirring and dispersing assembly (7), a limiting ring (8), a filter assembly (9), a water distributor (10) and a diluent inlet pipe (11); the upper end of the U-shaped frame (1) is fixedly connected to a bearing seat (2) symmetrically distributed on the left and right; a rotating shaft (3) is installed in the bearing seat (2); a negative pressure reaction tank body (4) is fixedly connected between the rotating shaft (3) and another rotating shaft (3); the negative pressure reaction tank body (4 ) is provided with a detachable upper cover (5) at the upper end; a liquid inlet (6) is provided at the middle of the upper end of the upper cover (5); a stirring and dispersing assembly (7) is rotatably connected inside the negative pressure reaction tank body (4); a limiting ring (8) is fixedly connected to the upper side of the negative pressure reaction tank body (4); a filter assembly (9) is movably connected to the upper end of the limiting ring (8); a water distributor (10) connected to the liquid inlet (6) is provided at the lower end of the upper cover (5); and a diluent inlet pipe (11) is provided inside the upper cover (5) and extends downward through the filter assembly (9).

2. A negative pressure reaction tank for waste acid dilution treatment according to claim 1, characterized in that: The stirring and dispersing assembly (7) comprises a stirring shaft (71); a dispersing plate (72) is fixedly connected to the upper end of the stirring shaft (71); connecting rings (73) distributed equidistantly are fixedly connected to the outer side of the stirring shaft (71); and annular stirring rods (74) distributed equidistantly are fixedly connected to the outer side of the connecting ring (73).

3. A negative pressure reaction tank for waste acid dilution treatment according to claim 1, characterized in that: The filter assembly (9) comprises a filter body (91); a support seat (92) symmetrically distributed frontward and rearward is fixedly connected to the upper end of the filter body (91); a groove (93) is provided at the upper end of the support seat (92); a sealing gasket (94) abutting against the lower end of the upper cover (5) is fixedly connected in the groove (93); and a left-right symmetrical clamping groove (95) is provided on the filter body (91).

4. A negative pressure reaction tank for waste acid dilution treatment according to claim 2, characterized in that: A coupling (12) and a first motor (13) are sequentially mounted on the lower end of the stirring shaft (71); and reinforcement rods (14) symmetrically distributed on the left and right are fixedly connected between the first motor (13) and the negative pressure reaction tank body (4).

5. A negative pressure reaction tank for waste acid dilution treatment according to claim 1, characterized in that: A mounting plate (15) is installed at the right end of the U-shaped frame (1); a second motor (16) is fixedly connected to the upper end of the mounting plate (15); and an output shaft of the second motor (16) is fixedly connected to the rotating shaft (3).

6. A negative pressure reaction tank for waste acid dilution treatment according to claim 3, characterized in that: The upper end of the limiting ring (8) is fixedly connected with a clamping block (17) which is symmetrically distributed on the left and right sides; the clamping block (17) and the clamping groove (95) are clamped and connected.

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