Chromium-containing wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a chromium-containing wastewater treatment device which comprises a device body, a treatment box is arranged in the device body, a base is arranged below the treatment box, a water inlet pipe, a chemical feeding pipe and a first bevel gear are arranged above the treatment box, and the first bevel gear is located at the upper end of the treatment box. One side of the bevel gear I is meshed with a bevel gear II, the lower part of the bevel gear I is connected with a connecting rod, and one end of the bevel gear II is connected with a first motor. According to the chromium-containing wastewater treatment device provided by the utility model, wastewater and chemicals entering the device can be mixed and stirred, so that the stirring speed of the device is increased; the wastewater treatment device has the advantages that wastewater treatment speed is increased, waste caused by non-uniform mixing of chemicals entering the device is avoided, the device can be moved according to use requirements of a user, stability and safety of the device are improved, and the trouble that moving wheels of the device are not changed for storage in the later period is avoided.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to a chromium-containing wastewater treatment device. Background Art

[0002] Chromium is a bluish-grey, hard metal with a very bright luster. All chromium compounds are toxic, and chromium on earth exists in the form of chromite. Chromium is mainly used in stainless steel, electroplating, and metal ceramics.

[0003] In the electroplating and metal sheet production industries, a large amount of chromium-containing wastewater will be discharged. Chromium-containing wastewater will pollute the environment. The wastewater needs to be treated before discharge. It can only be discharged when all indicators meet the requirements of the "Comprehensive Sewage Discharge Standard" (GB8978-1996). Among them, the emission requirement for chromium is that the total chromium content is less than or equal to 1.5 mg per liter.

[0004] At present, the commonly used treatment method for chromium-containing wastewater is chemical reduction, that is, under acidic conditions, hexavalent chromium is converted into trivalent chromium through oxidation-reduction reaction, and then the solution is adjusted to alkaline to convert trivalent chromium into chromium hydroxide precipitate, and the chromium hydroxide is removed by flocculation precipitation. When adjusting the pH of the solution, it is necessary to manually add acidic or alkaline reagents, and then test whether the pH of the solution meets the requirements. The pH adjustment process is relatively complicated and requires repeated measurement and addition of acid and alkali reagents. The repeated addition of acid and alkali reagents is not conducive to sufficient mixing of the wastewater, which easily leads to a lot of waste of acid and alkali reagents. Therefore, we need to upgrade and transform on the basis of existing technologies. Utility Model Content

[0005] The utility model aims to provide a chromium-containing wastewater treatment device to solve the problem that the chromium wastewater treatment process proposed in the above background technology is relatively complicated, requires repeated measurement and addition of acid and alkali reagents, and it is not convenient to fully mix the wastewater during the repeated addition of acid and alkali reagents.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a chromium-containing wastewater treatment device, comprising a device body, a treatment box is arranged in the device body, a base is arranged below the treatment box, and a water inlet pipe and a dosing pipe are arranged above the treatment box.

[0007] Bevel gear one, the bevel gear one is located at the upper end of the processing box, one side of the bevel gear one is meshed with bevel gear two, a connecting rod is connected below the bevel gear one, one end of the bevel gear two is connected to the first motor, and the bevel gear two is meshed with bevel gear three below;

[0008] A connecting rod, the connecting rod movably penetrates the bevel gear three, a propeller is sleeved on the connecting rod, the bevel gear three is connected to a support frame below, a stirring blade is arranged on the inner side of the support frame, a connecting plate is arranged on the outer side of the support frame, and a scraper is arranged on the connecting plate;

[0009] A bidirectional screw rod, wherein the bidirectional screw rod is located in the base, one end of the bidirectional screw rod is connected to the second motor, a ring is sleeved on the bidirectional screw rod, the left and right ends of the ring are connected to connecting columns, the connecting column is connected to a connecting rod, the connecting rod, a connecting buckle is movably connected to the bottom of the connecting rod, a placement plate is fixedly provided below the connecting buckle, and a movable wheel is installed below the placement plate.

[0010] Preferably, scale lines are arranged on the outer side wall of the dosing tube, a cover plate is movably installed above the dosing tube, and an observation window is fixedly installed inside one side of the processing box.

[0011] Preferably, the bevel gear 1, bevel gear 2 and bevel gear 3 are all fixedly sleeved with a protective shell on the outside, and the first motor is fixedly sleeved with a fixing frame on the outside.

[0012] Preferably, the propeller is in a spiral ascending shape, the upper diameter of the propeller is smaller than the lower diameter, the propeller is fixedly connected to a connecting rod, and the stirring blades are symmetrically arranged in multiple groups, and the stirring blades are symmetrically arranged in different directions.

[0013] Preferably, a guide rod is fixedly mounted on the inner wall of the base, a guide cylinder is fixedly disposed on the upper end of the placement plate, a guide rod is mounted in the guide cylinder, and the guide rod is slidably connected to the guide cylinder.

[0014] Preferably, the moving wheels are provided in multiple groups, the moving wheels are installed under the placement plate, and the moving wheels are screwed and fixed to the placement plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a chromium-containing wastewater treatment device, which is provided with a protective shell, a bevel gear 1, a bevel gear 2, a first motor, a fixing frame, a connecting rod, a propeller, a bevel gear 3, a supporting frame, a connecting plate, a scraper and a stirring blade, which can mix and stir the wastewater and the reagent entering the device, thereby improving the stirring speed of the device, accelerating the speed of wastewater treatment, and avoiding the situation in which the reagent entering the device is not mixed evenly and is wasted;

[0017] At the same time, through the provision of a bidirectional screw rod, a second motor, a collar, a connecting column, a connecting rod, a connecting buckle, a placement plate, a guide cylinder, a guide rod and a moving wheel, the device can be moved according to the user's needs, thereby increasing the stability and safety of the device and avoiding the trouble of the device's moving wheels being stored unchanged at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a sectional stereogram of the internal structure of the utility model;

[0021] Figure 3 This is an exploded view of the stirring structure of the utility model;

[0022] Figure 4 This is a cross-sectional view of the adjustment structure of the utility model;

[0023] Figure 5 This is a partial exploded view of the regulating structure of the utility model.

[0024] In the figure: device body 1, treatment box 2, base 3, water inlet pipe 4, dosing pipe 5, scale line 51, cover plate 52, observation window 53, protective shell 6, bevel gear one 7, bevel gear two 8, first motor 9, fixing frame 10, connecting rod 11, propeller 12, bevel gear three 13, support frame 14, connecting plate 15, scraper 16, stirring blade 17, two-way screw 18, second motor 19, collar 20, connecting column 21, connecting rod 22, connecting buckle 23, placement plate 24, guide cylinder 25, guide rod 26, moving wheel 27. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0026] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0027] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0030] Embodiment 1

[0031] See also Figures 1 to 5 The utility model provides a technical solution: a chromium-containing wastewater treatment device, comprising a device body 1, a treatment box 2 is arranged in the device body 1, a base 3 is arranged below the treatment box 2, and a water inlet pipe 4 and a dosing pipe 5 are arranged above the treatment box 2, characterized in that:

[0032] Bevel gear 1 7, bevel gear 1 7 is located at the upper end of the processing box 2, one side of bevel gear 1 7 is meshed with bevel gear 2 8, a connecting rod 11 is connected below bevel gear 1 7, one end of bevel gear 2 8 is connected to the first motor 9, and bevel gear 2 8 is meshed with bevel gear 3 13 below;

[0033] A connecting rod 11 is movably inserted into a bevel gear 3 13, a propeller 12 is sleeved on the connecting rod 11, a support frame 14 is connected below the bevel gear 3 13, a stirring blade 17 is arranged inside the support frame 14, a connecting plate 15 is arranged outside the support frame 14, and a scraper 16 is arranged on the connecting plate 15;

[0034] A bidirectional screw rod 18 is located inside the base 3, one end of the bidirectional screw rod 18 is connected to the second motor 19, a collar 20 is sleeved on the bidirectional screw rod 18, the left and right ends of the collar 20 are connected to connecting columns 21, the connecting column 21 is connected to a connecting rod 22, the connecting rod 22 is movably connected with a connecting buckle 23 below the connecting rod 22, a placement plate 24 is fixedly provided below the connecting buckle 23, and a moving wheel 27 is installed below the placement plate 24.

[0035] By providing the scraper 16, the inner wall of the processing box 2 can be cleaned, and by providing the support frame 14, the stability of the device is increased, ensuring the safety of the device during operation.

[0036] Embodiment 2

[0037] On the basis of Example 1, a scale line 51 is provided on the outer wall of the dosing tube 5, a cover plate 52 is movably installed above the dosing tube 5, an observation window 53 is fixedly installed inside one side of the processing box 2, the bevel gear 1 7, the bevel gear 2 8 and the bevel gear 3 13 are all fixedly sleeved with a protective shell 6 on the outside, the first motor 9 is fixedly sleeved with a fixing frame 10 on the outside, the propeller 12 is in a spiral ascending shape, the upper diameter of the propeller 12 is smaller than the lower diameter, the propeller 12 is fixedly connected to the connecting rod 11, and the stirring blades 17 are symmetrically arranged in multiple groups, and the stirring blades 17 are symmetrically arranged in different directions.

[0038] By setting the scale line 51, it is convenient for the staff to control the amount of medicine injected, which provides convenience for the user. By setting the cover plate 52, the dosing tube 5 can be protected to prevent dust from entering the dosing tube 5 when not in use. By setting the observation window 53, it is convenient for the user to observe the wastewater treatment reaction in the treatment box 2. By setting the protective shell 6, the bevel gear 1 7, the bevel gear 2 8 and the bevel gear 3 13 can be protected to prevent the device from being damaged by bumps during use. By setting the fixing frame 10, the safety and stability of the first motor 9 during use are guaranteed. By setting the propeller 12, the medicine and wastewater entering the device can be fully mixed and stirred, which provides convenience for the user. By setting the stirring blade 17, the stirring speed of the device is increased, and the fusion of wastewater and medicine in the device is accelerated.

[0039] Embodiment 3

[0040] On the basis of Example 2, a guide rod 26 is fixedly installed on the inner wall of the base 3, a guide cylinder 25 is fixedly installed on the upper end of the placement plate 24, a guide rod 26 is installed in the guide cylinder 25, the guide rod 26 is slidably connected to the guide cylinder 25, and multiple groups of moving wheels 27 are provided, the moving wheels 27 are installed under the placement plate 24, and the moving wheels 27 are screwed and fixed to the placement plate 24.

[0041] By setting the guide rod 26, the direction of movement of the device can be guided to avoid position displacement of the device during movement. By setting the guide cylinder 25, the guide rod 26 can be protected. By setting the moving wheel 27, the position of the device can be moved according to the needs of the user, thereby increasing the practicality and convenience of the device.

[0042] When the utility model is in use, first control the second motor 19 to operate, and the second motor 19 operates to drive the bidirectional screw rod 18 to rotate. When the bidirectional screw rod 18 rotates, it drives the two sets of collars 20 above to move on the bidirectional screw rod 18. During the movement of the collar 20, the connecting rod 22 is driven to adjust the angle in the connecting buckle 23. During the angle adjustment process of the connecting buckle 23, the guide rod 26 is driven to move upward from the guide cylinder 25. At this time, the connecting buckle 23 pushes the placement plate 24 downward until the moving wheel 27 is in contact with the ground (conversely, the moving wheel 12 of the device can be stored and fixed). At this time, the operator pushes the device body 1 to the operating point through the moving wheel 27. The operator first adds waste water into the treatment box 2 through the water inlet pipe 4, and then the user takes out the cover plate 25 from the dosing pipe 4, observes the scale line 51, and pours the medicine used to treat the waste water into the treatment box 2 through the dosing pipe 4, and then controls the first motor 9 to operate, and the first motor 9 drives the bevel gear 1 7 and the bevel gear The three 13 rotates in the opposite direction, and when the bevel gear one 7 rotates, it drives the connecting rod 10 to rotate in the bevel gear three 13. When the connecting rod 10 rotates, it drives the propeller 12 to mix and stir the waste water and the medicine entering the device. When the bevel gear three 13 rotates, it drives the support frame 14 below to rotate. When the support frame 14 rotates, it drives the stirring blade 17 and the connecting plate 15 to rotate. The stirring blade 17 stirs the waste water and the medicine entering the barrel in the opposite direction, and the connecting plate 15 drives the scraper 16 to scrape the inner wall of the treatment box 2. A chemical reaction occurs during the stirring of the waste water and the medicine. After the reaction, the waste water is discharged through the drain pipe. The waste water and the medicine entering the device can be mixed and stirred, the stirring speed of the device is improved, the speed of wastewater treatment is accelerated, and the medicine entering the device is avoided. The situation of uneven mixing and waste occurs, and the device can also be moved according to the user's needs, which increases the stability and safety of the device and avoids the trouble of the device moving wheel 27 being stored unchanged in the later stage.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0044] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A chromium-containing wastewater treatment device, comprising a device body (1), wherein a treatment box (2) is arranged in the device body (1), a base (3) is arranged below the treatment box (2), and a water inlet pipe (4) and a dosing pipe (5) are arranged above the treatment box (2), characterized in that: Bevel gear one (7), the bevel gear one (7) is located at the upper end of the processing box (2), one side of the bevel gear one (7) is meshed with bevel gear two (8), a connecting rod (11) is connected below the bevel gear one (7), one end of the bevel gear two (8) is connected to the first motor (9), and the bevel gear two (8) is meshed with bevel gear three (13) below; A connecting rod (11), the connecting rod (11) movably penetrates the bevel gear three (13), a propeller (12) is sleeved on the connecting rod (11), the bevel gear three (13) is connected to a support frame (14) below, a stirring blade (17) is provided on the inner side of the support frame (14), a connecting plate (15) is provided on the outer side of the support frame (14), and a scraper (16) is provided on the connecting plate (15); A bidirectional screw rod (18), wherein the bidirectional screw rod (18) is located in the base (3), one end of the bidirectional screw rod (18) is connected to the second motor (19), a collar (20) is sleeved on the bidirectional screw rod (18), the left and right ends of the collar (20) are connected to connecting columns (21), the connecting column (21) is connected to a connecting rod (22), the connecting rod (22) is movably connected to a connecting buckle (23) below the connecting rod (22), a placement plate (24) is fixedly provided below the connection buckle (23), and a moving wheel (27) is installed below the placement plate (24).

2. A chromium-containing wastewater treatment device according to claim 1, characterized in that: A scale mark (51) is provided on the outer wall of the dosing tube (5), a cover plate (52) is movably installed above the dosing tube (5), and an observation window (53) is fixedly installed inside one side of the processing box (2).

3. A chromium-containing wastewater treatment device according to claim 1, characterized in that: The bevel gear 1 (7), bevel gear 2 (8) and bevel gear 3 (13) are all fixedly sleeved with a protective shell (6) on the outside, and the first motor (9) is fixedly sleeved with a fixing frame (10) on the outside.

4. A chromium-containing wastewater treatment device according to claim 1, characterized in that: The propeller (12) is in a spiral ascending shape, the upper diameter of the propeller (12) is smaller than the lower diameter, the propeller (12) is fixedly connected to the connecting rod (11), and the stirring blades (17) are symmetrically arranged in multiple groups, and the stirring blades (17) are symmetrically arranged in different directions.

5. A chromium-containing wastewater treatment device according to claim 1, characterized in that: A guide rod (26) is fixedly mounted on the inner wall of the base (3), a guide cylinder (25) is fixedly mounted on the upper end of the placement plate (24), a guide rod (26) is mounted inside the guide cylinder (25), and the guide rod (26) is slidably connected to the guide cylinder (25).

6. A chromium-containing wastewater treatment device according to claim 1, characterized in that: The moving wheels (27) are provided in multiple groups. The moving wheels (27) are installed below the placement plate (24). The moving wheels (27) are screwed and fixed to the placement plate (24).

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