Chromium-containing waste liquid collecting device

Abstract

The utility model relates to the technical field of waste liquid treatment, in particular to a chromium-containing waste liquid collecting device. According to the chromium-containing waste liquid collecting device, the stirring piece is arranged in the reaction kettle, and the material adding opening communicated with the interior of the reaction kettle is formed in the top of the reaction kettle, so that the chromium-containing waste liquid can fully react, and raw materials are prevented from generating mud in the reaction tank; the bottom of the reaction kettle is connected with a solid-liquid separation mechanism, the solid-liquid separation mechanism comprises a separation tank communicated with the reaction kettle, a flow guide part is mounted in the separation tank, a filter part is arranged at the bottom of the flow guide part, a scraper device is mounted on the filter part, a slag outlet matched with the scraper device is formed in the separation tank, and a slag outlet matched with the scraper device is formed in the separation tank. Therefore, the filtrate and the filter residue can be fully separated, and chromium-containing substances can be recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste liquid treatment technical field, specifically relate to a kind of chromium-containing waste liquid collecting device. BACKGROUND

[0002] Chromium is a kind of metal with silver-white luster, non-toxic, very stable substance of chemical property.Chromium and its chemical table are widely used in industry, involve metallurgy, chemical engineering, mineral engineering, electroplating, chromium production, pigment, pharmaceutical, light industry textile, chromium salt and chromium production of a series of industries, when specific application, all can produce a large amount of chromium-containing waste liquid.

[0003] Chromium-containing waste liquid is mainly heavy metal pollutant, chromium exists mainly in the form of trivalent chromium and hexavalent chromium in environment, and its main harmful component is hexavalent chromium, hexavalent chromium is unstable, has toxicity and strong oxidizing property, is very big to the threat of life safety of person, can cause cancer and mutation.Hexavalent chromium is seriously harmful to environment, pollutes soil and water environment, and makes fish and shrimp die.

[0004] The existing commonly used reduction method is to add reducing agent to wastewater to reduce toxic hexavalent chromium into non-toxic trivalent chromium, and then discharge.But when treating, there are problems such as that filtrate and filter residue are not separated cleanly, and are not easy to collect effectively.

[0005] Therefore, an effective collecting device for separating filtrate and filter residue is sought. UTILITY MODEL CONTENT

[0006] The utility model is to at least solve one of the technical problems existing in the prior art, and provide a chromium-containing waste liquid collecting device.

[0007] To achieve the above object, the utility model adopts the following technical scheme: a chromium-containing waste liquid collecting device, comprising a reaction kettle, a stirring part is arranged in the reaction kettle, a material adding port is arranged at the top of the reaction kettle and communicates with the inside of the reaction kettle, a solid-liquid separation mechanism is connected to the bottom of the reaction kettle, the solid-liquid separation mechanism comprises a separation tank communicating with the reaction kettle, a flow guide part is arranged in the separation tank, a filter part is arranged at the bottom of the flow guide part, a scraper is arranged on the filter part, and a slag outlet is arranged on the separation tank and matched with the scraper.

[0008] Further, the stirring part comprises a first motor mounted on the top of the reaction kettle, a first rotating shaft is arranged at the output end of the first motor, and stirring blades are arranged on the first rotating shaft.

[0009] Further, the flow guide part comprises a flow guide plate arranged in the separation tank, and a vibrating part is arranged on the flow guide plate.

[0010] Further, the vibrating member comprises a vibrating motor mounted on the separation tank, and an output end of the vibrating motor is provided with a vibrating shaft connected with the flow guide plate.

[0011] Further, the flow guide plate is arranged in the separation tank in a downward inclination.

[0012] Further, the filtering member comprises a filtering plate mounted in the separation tank, and a plurality of filtering holes are arranged on the filtering plate.

[0013] Further, the filtering plate is arranged in the separation tank in an inclination and matched with the slag outlet.

[0014] Further, the scraper comprises a second motor mounted on the separation tank, and an output end of the second motor is provided with a second rotating shaft, and a spiral scraper is arranged on the second rotating shaft.

[0015] Further, the feeding port comprises one or more of a raw material feeding port and a liquid medicine feeding port.

[0016] Further, the bottom of the separation tank is provided with a liquid outlet.

[0017] Compared with the prior art, the technical scheme has the following beneficial effects:

[0018] The reaction kettle is internally provided with a stirring member, the top of the reaction kettle is provided with a feeding port in communication with the inside of the reaction kettle, so that the chromium-containing waste liquid can be fully reacted to prevent the raw materials from being mud in the reaction tank; the bottom of the reaction kettle is connected with a solid-liquid separation mechanism, the solid-liquid separation mechanism comprises a separation tank in communication with the reaction kettle, a flow guide member is mounted in the separation tank, a filtering member is arranged at the bottom of the flow guide member, a scraper is mounted on the filtering member, and a slag outlet matched with the scraper is arranged on the separation tank, so that the filtrate and the filter residue can be fully separated to realize the recovery of the chromium-containing substances. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the chromium-containing waste liquid collecting device in the preferred embodiment of the utility model.

[0020] Mark: 1, reaction kettle; 2, stirring member; 201, first motor; 202, first rotating shaft; 203, stirring blade; 3, feeding port; 301, raw material feeding port; 302, liquid medicine feeding port; 4, separation tank; 5, flow guide member; 6, filtering member; 7, scraper; 701, second motor; 702, second rotating shaft; 703, spiral scraper; 8, slag outlet; 9, vibrating member. DETAILED DESCRIPTION

[0021] The technical solutions in the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Referring to Figure 1 As shown in the utility model discloses a preferred embodiment, a kind of chromium-containing waste liquid collecting device, the inside of the reaction kettle 1 is equipped with stirring part 2, so that chromium-containing waste liquid can fully react, prevent raw materials in reaction tank rise mud;The top of the reaction kettle 1 is equipped with with its inside communication's material adding port 3, the bottom of the reaction kettle 1 is connected with solid-liquid separation mechanism, and the solid-liquid separation mechanism includes with the communication of the reaction kettle 1 separation tank 4, the inside of the separation tank 4 is equipped with flow guide part 5, the bottom of the flow guide part 5 is equipped with filter piece 6, scraper 7 is installed on the filter piece 6, the separation tank 4 is equipped with with the matching of scraper 7 slag outlet 8, and the reaction kettle and separation tank are equipped with control valve for controlling waste liquid to flow to separation tank, so that filtrate and filter residue can be fully separated, realize the collection of chromium-containing substance.

[0023] As a preferred embodiment of the utility model, it can also have the following additional technical features: stirring part 2 includes first motor 201 installed on the top of the reaction kettle, the output end of the first motor 201 is equipped with first rotating shaft 202, the first rotating shaft 202 is equipped with stirring blade 203, and the first rotating shaft is equipped with bearing for fixing the rotation of the rotating shaft. Thus, waste water can fully react with medicine water, and the generated sludge is filtered by filter piece.

[0024] In this embodiment, the flow guide part 5 includes a flow guide plate arranged in the separation tank 4, and a vibration part 9 is installed on the flow guide plate; the vibration part 9 includes a vibration motor installed on the separation tank, the output end of the vibration motor is equipped with vibration shaft, the vibration shaft is connected with the flow guide plate, and the flow guide plate is arranged inclined downward in the separation tank 4. Thus, liquid and solid can be fully separated.

[0025] In this embodiment, the filter piece 6 includes a filter plate installed in the separation tank, and a plurality of filter holes are arranged on the filter plate; and the filter plate is arranged inclined in the separation tank 4 and matched with the slag outlet. Thus, the filter residue and filtrate can be fully separated, and the filter residue can be easily discharged.

[0026] In this embodiment, the scraper 7 includes a second motor 701 installed on the separation tank 4, the output end of the second motor 701 is equipped with second rotating shaft 702, the second rotating shaft 702 is equipped with spiral scraper 703, and the second rotating shaft is also equipped with bearing for fixing the rotation of the rotating shaft. Thus, the filter residue on the filter plate can be removed.

[0027] The embodiment also comprises a control mechanism, which comprises a controller, a control switch, a power supply and the like, and is electrically connected with the stirring piece, the vibrating piece, the scraper and the control valve, and is used for controlling the working state of the stirring piece, the vibrating piece, the scraper and the control valve.

[0028] In the embodiment, the feeding port 3 comprises a raw material feeding port 301 and a liquid medicine feeding port 302, wherein the liquid medicine is added according to the prior art to first add a reducing agent such as Na2SO3 to convert hexavalent chromium into trivalent chromium, and then add lye to precipitate the trivalent chromium to realize the collection of chromium in the waste liquid, and the bottom of the separation tank 4 is provided with a liquid outlet.

[0029] The working principle of the utility model is: the stirring machine 2 is started while the chromium-containing waste liquid and the liquid medicine reducing agent are added into the reaction kettle 1, so that the chromium-containing waste liquid can fully perform the oxidation-reduction reaction with the liquid medicine; then other liquid medicine is added into the reaction kettle, so that the chromium generates a precipitate; and the solid and the liquid are fully separated through the cooperation of the flow guide piece 5 and the filter piece 6, after the separation, the filter plate is discharged into the separation tank through the starting of the scraper 7, so that the filter residue and the filtrate are fully separated.

[0030] On the premise that no conflict occurs, the person skilled in the art can freely combine and superimpose the use of the above-mentioned additional technical features.

[0031] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A chromium-containing waste solution collection device, characterized by: The utility model provides a reaction kettle, which is internally provided with a stirring part, and a material adding port is arranged on the top of the reaction kettle and communicates with the inside of the reaction kettle; a solid-liquid separation mechanism is connected to the bottom of the reaction kettle, and the solid-liquid separation mechanism comprises a separation tank communicating with the reaction kettle; a flow guide part is arranged in the separation tank; a filter part is arranged at the bottom of the flow guide part; a scraper is arranged on the filter part; and a slag outlet is arranged on the separation tank and matched with the scraper.

2. The chromium-containing waste solution collection device of claim 1, wherein: The stirring part comprises a first motor arranged on the top of the reaction kettle; an output end of the first motor is provided with a first rotating shaft; and stirring blades are arranged on the first rotating shaft.

3. The chromium-containing waste solution collection device of claim 1, wherein: The flow guide part comprises a flow guide plate arranged in the separation tank; and a vibrating part is arranged on the flow guide plate.

4. The chromium-containing waste solution collection device of claim 3, wherein: The vibrating part comprises a vibrating motor arranged on the separation tank; an output end of the vibrating motor is provided with a vibrating shaft; and the vibrating shaft is connected with the flow guide plate.

5. The chromium-containing waste solution collection device of claim 3, wherein: The flow guide plate is arranged in the separation tank in an inclined downward manner.

6. The chromium-containing waste solution collection device of claim 1, wherein: The filter part comprises a filter plate arranged in the separation tank; and a plurality of filter holes are arranged on the filter plate.

7. The chromium-containing waste solution collection device of claim 6, wherein: The filter plate is arranged in the separation tank in an inclined manner and matched with the slag outlet.

8. The chromium-containing waste solution collection device of claim 1, wherein: The scraper comprises a second motor arranged on the separation tank; an output end of the second motor is provided with a second rotating shaft; and a spiral scraper is arranged on the second rotating shaft.

9. The chromium-containing waste solution collection device of claim 1, wherein: The material adding port comprises one or more of a raw material adding port and a liquid medicine adding port.

10. The chromium-containing waste solution collection device of claim 1, wherein: The bottom of the separation tank is provided with a liquid outlet.

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