A device for solidifying heavy metal ions in industrial solid waste powder

Abstract

This disclosure discloses a device for solidifying heavy metal ions in industrial solid waste powder, belonging to the field of industrial solid waste powder technology. The device includes a first support and a second support arranged adjacent to each other; a mixing container is disposed on the first support, and the mixing container is equipped with at least one solution inlet, at least one vibration motor, and a stirrer; a solution introduction component is disposed on the second support, and the solution introduction component includes a liquid storage tank and an introduction pipeline, one end of the introduction pipeline being connected to the liquid storage tank and the other end being connected to the solution inlet; when the mixture of industrial solid waste powder and solidifying agent enters the mixing container, the solution enters from the liquid storage tank through the introduction pipeline and the solution inlet into the mixing container to mix with the solid waste powder. After mixing is completed, the vibration motor and the stirrer are activated sequentially. This disclosure, by mixing first and then vibrating, can uniformly mix industrial solid waste powder and solidifying agent, adsorb heavy metals in industrial solid waste, and solve the problem of heavy metal leaching from solid waste.

Description

Technical Field

[0001] This disclosure belongs to the field of industrial solid waste powder technology, specifically relating to a device for solidifying heavy metal ions in industrial solid waste powder. Background Technology

[0002] Industrial solid waste refers to solid, semi-solid, or liquid waste generated during industrial production processes. This waste no longer has direct use value but may contain hazardous components or recyclable resources. Solid waste often contains recyclable resources such as metals and organic matter; direct landfilling or stockpiling leads to resource loss. Therefore, solidifying heavy metal ions in industrial solid waste can mitigate the environmental risks associated with its accumulation, while also generating economic benefits.

[0003] Existing technologies for solidifying heavy metal ions in industrial solid waste suffer from low mixing efficiency, uneven mixing of industrial solid waste powder and solidifying agent, resulting in incomplete solidification of heavy metals in some areas, agglomeration of solidifying agent, reduced effective contact area, and low actual utilization rate.

[0004] Therefore, in order to solve the above problems, it is necessary to develop a device for solidifying heavy metal ions in industrial solid waste. Summary of the Invention

[0005] This disclosure aims to at least solve one of the technical problems existing in the prior art, and to provide an apparatus for solidifying heavy metal ions in industrial solid waste powder.

[0006] In one aspect, this disclosure provides an apparatus for solidifying heavy metal ions in industrial solid waste powder, the apparatus comprising:

[0007] The first and second supports are arranged adjacent to each other;

[0008] A mixing container is disposed on the first support, and the mixing container is provided with at least one solution inlet, at least one vibration motor and a stirrer;

[0009] A solution introduction component is disposed on the second bracket, and the solution introduction component includes a liquid storage tank and an introduction pipeline, one end of the introduction pipeline is connected to the liquid storage tank, and the other end is connected to the solution inlet;

[0010] When the mixture of industrial solid waste powder and curing agent enters the mixing container, the solution enters the mixing container from the liquid storage tank through the inlet pipe and the solution inlet, and mixes with the mixture. After mixing is completed, the vibration motor and the agitator are started in sequence.

[0011] Optionally, the mixer includes a drive mechanism and a stirring shaft connected to the drive mechanism, wherein the drive mechanism is disposed on the first support, the stirring shaft passes through the mixing container, and several metal strips are spirally wound on the stirring shaft.

[0012] Optionally, the solution introduction assembly further includes a transmission mechanism and a fluid drive, one end of the transmission mechanism being connected to the drive mechanism and the other end being connected to the fluid drive, and the fluid drive being connected to the liquid storage tank.

[0013] Optionally, the solution inlet is provided with an atomizing nozzle, the atomizing nozzle including a connecting portion and a fan-shaped nozzle; wherein,

[0014] The connecting part is located outside the side wall of the mixing container, and the fan-shaped nozzle is located inside the side wall of the mixing container.

[0015] Optionally, the opening of the fan-shaped nozzle is angled downwards.

[0016] Optionally, the mixing container is provided with an inlet at the top and an outlet at the bottom; wherein,

[0017] The at least one vibration motor is located at the bottom of the mixing container and distributed around the discharge port, and the at least one solution inlet is located on the side wall of the mixing container near the inlet.

[0018] Optionally, the bottom of the mixing container is provided with a plurality of reinforcing ribs, which extend from the discharge port toward the edge of the mixing container.

[0019] Optionally, the discharge port is provided with an opening and closing control element to open when it is necessary to discharge the minerals formed by the reaction of solid waste powder and solidifying agent.

[0020] Optionally, the opening and closing control component includes an outlet flange and a valve flange. The outlet flange is installed around the discharge port, and the valve flange is located on the side of the outlet flange away from the discharge port, and a handle is provided on the valve flange.

[0021] Optionally, the feed inlet is provided with a flap-type one-way plate.

[0022] This disclosure discloses an apparatus for solidifying heavy metal ions in industrial solid waste powder. The apparatus includes: a first support and a second support arranged adjacent to each other; a mixing container disposed on the first support, and the mixing container is provided with at least one solution inlet, at least one vibration motor, and a stirrer; and a solution introduction component disposed on the second support, and the solution introduction component includes a liquid storage tank and an introduction pipeline, one end of the introduction pipeline being connected to the liquid storage tank and the other end being connected to the solution inlet. When the mixture of industrial solid waste powder and solidifying agent enters the mixing container, the solution enters the mixing container from the liquid storage tank through the introduction pipeline and the solution inlet, and mixes with the solid waste powder. After mixing is completed, the vibration motor and the stirrer are activated sequentially. This disclosure can uniformly mix industrial solid waste powder and solidifying agent by stirring first and then vibrating, thereby adsorbing heavy metals in industrial solid waste, effectively improving the mixing effect of solid waste powder and solidifying agent, and fundamentally solving the problem of heavy metal leaching from solid waste. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the device for solidifying heavy metal ions in industrial solid waste powder according to a specific embodiment of this disclosure.

[0024] Figure 2 This is a schematic diagram of the device for solidifying heavy metal ions in industrial solid waste powder according to a specific embodiment of this disclosure.

[0025] Figure 3 This is a schematic diagram of the structure of the stirring shaft and metal belt in the mixer according to a specific embodiment of this disclosure. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this disclosure and represent a part of the embodiments of this disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the protection scope of this disclosure.

[0027] This disclosure discloses an apparatus 100 for solidifying heavy metal ions in industrial solid waste powder. The apparatus 100 includes: a first support 110 and a second support 120 arranged adjacent to each other, a mixing container 130, and a solution introduction component 140. The mixing container 130 is disposed on the first support 110 and is provided with at least one solution inlet 115, at least one vibration motor 150, and a mixer 160. The solution introduction component 140 is disposed on the second support 120 and includes a liquid storage tank 141 and an introduction pipe. One end of the introduction pipe is connected to the liquid storage tank 141, and the other end is connected to the solution inlet 115. When the industrial solid waste powder and the solidifying agent enter the mixing container 130, the solution enters the mixing container 130 from the liquid storage tank 141 through the introduction pipe and the solution inlet 115, and mixes with the solid waste powder. After mixing is completed, the vibration motor 150 and the mixer 160 are activated sequentially.

[0028] In this embodiment, by setting up a separate solution introduction component, the solution is introduced separately from the solution inlet of the mixing container at the same time as the mixture of solid waste powder and curing agent is added to the mixing container, so that it is fully mixed with the mixture. By setting up a vibration motor and a stirrer on the mixing container, the method of stirring first and then vibrating is adopted to make the industrial solid waste powder and curing agent mixed evenly, and the heavy metals are fully coated. The mechanical vibration compacts the mixture and removes internal air bubbles, so that the curing effect of heavy metals is significantly improved.

[0029] It should be understood that when solid waste powder and solidifying agent react, acidic solutions such as citric acid, phosphoric acid, and sulfuric acid need to be added. Under the action of acidic solutions, the structure of solid waste powder can be destroyed, releasing free heavy metal ions. In this way, the solidifying agent can convert the free heavy metals into a stable mineral phase through chemical reaction, thereby solidifying the heavy metal ions in industrial solid waste powder.

[0030] It should be noted that this embodiment does not specifically limit the connection method, structure, and material of the first and second supports. For example, the first and second supports can be spaced apart and not directly connected. Of course, the first and second supports can also be integrally formed. Furthermore, the first and second supports can be a frame structure. For example, the first and second supports can be a frame structure formed by connecting a bottom support plate, a top support plate, and vertical support columns. Alternatively, they can only have vertical and horizontal support columns, i.e., the top and bottom are openwork structures. Additionally, the dimensions of the first and second supports can be specifically set according to actual needs, and the material can be steel.

[0031] In some preferred embodiments, such as Figure 1 and Figure 2As shown, the first support 110 includes four vertical support columns, four bottom horizontal support columns, and four top horizontal support columns. The four bottom horizontal support columns are connected to the four vertical support columns in sequence to form a supporting bottom, and the four top horizontal support columns are connected to the four vertical support columns in sequence to form a supporting top. Thus, the top and bottom of the first support are hollow structures, facilitating the feeding and discharging of the mixing container. Preferably, rubber shock-absorbing pads can be installed at the bottom of the four vertical support columns to provide shock absorption and cushioning. Based on the structure of the first support 110, the mixing container 130 can be bolted to the top of the first support 110. The mixing container 130 has a feed inlet at the center of the top, through which solid waste powder and solidifying agent enter. It also has a discharge outlet at the center of the bottom, through which solidified powder, solidifying agent, and minerals obtained from the reaction solution are discharged. Other reaction products or residues can also be discharged from the discharge outlet. Furthermore, the bottom of the mixing container 130 is conical, meaning the mixing container can adopt a square conical funnel structure.

[0032] Furthermore, such as Figure 1 and Figure 2 As shown, a flap-type one-way valve 111 is provided at the inlet of the mixing container 130. This flap-type one-way valve can automatically reset. The flap-type one-way valve is installed via a rotating shaft, and torsion springs are installed on both sides of the rotating shaft. At the same time, an opening and closing control component is provided at the outlet of the mixing container 130. It opens when it is necessary to discharge the minerals and other materials formed after the reaction of solid waste powder and solidifying agent, and closes when the solid waste powder and solidifying agent are mixed and reacted.

[0033] It should be noted that this embodiment does not specifically limit the structure of the opening and closing control component, as long as it can achieve control over the opening and closing of the discharge port. For example, Figure 1 and Figure 2 As shown, the opening and closing control device includes an outlet flange 112 and a valve flange 113. The outlet flange 112 is located on the periphery of the discharge port, and the valve flange 113 is connected to the side of the outlet flange 112 away from the discharge port. The outlet flange 112 and the valve flange 113 are connected by bolts. A handle is provided on the valve flange, and the opening and closing of the valve flange can be controlled by the handle, which facilitates the control of the mixture of solid waste powder and solidifying agent.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown, at least one vibration motor 150 is provided at the bottom of the mixing container 130. The vibration motor 150 is located around the discharge port, and its number can be set according to actual needs. For example, a vibration motor 150 can be symmetrically arranged on both sides of the discharge port to vibrate the mixture of solid waste powder and solidifying agent to make it mix evenly. Of course, in other embodiments, other numbers of vibration motors can also be provided.

[0035] It should be noted that this embodiment does not specifically limit the fixing method of the vibration motor and the mixing container. For example, bolts can be used for fixing, and a rubber pad can be added between the contact surface of the bolt and the mixing container to play a buffering role.

[0036] Furthermore, such as Figure 1 and Figure 2 As shown, the bottom of the mixing container 130 is provided with multiple reinforcing ribs 114, which extend from the discharge port towards the edge of the mixing container. That is, by welding radial reinforcing ribs to the conical bottom, the bottom of the mixing container bears the static load (such as gravity) of the material and the dynamic load during the stirring process. By setting the reinforcing ribs, the moment of inertia of the bottom section can be increased, and the concentrated load can be distributed to the container wall or support, avoiding the bottom from sinking, cracking or leakage due to stress concentration.

[0037] Furthermore, such as Figure 1 and Figure 2 As shown, at least one solution inlet is provided in the upper region of the side wall of the mixing container 130. The solution inlet is located near the feed inlet, so that the solution flows from top to bottom through the solution inlet, allowing the solution to be fully mixed with the mixture in the mixing container. For example, two solution inlets are symmetrically arranged in the upper region of the side wall of the mixing container 130. Of course, in other embodiments, other numbers of solution inlets can be provided, or a solution inlet can be provided at the top of the mixing container, etc., without specific limitation.

[0038] As a further preferred embodiment, the solution inlet is provided with an atomizing nozzle 115, which includes a connecting portion and a fan-shaped nozzle; wherein, the connecting portion is located outside the side wall of the mixing container 130, and the fan-shaped nozzle is located inside the side wall of the mixing container 130. Furthermore, in other preferred embodiments, a rubber shock-absorbing sleeve may be provided between the atomizing nozzle and the mixing container to increase cushioning and reduce vibration.

[0039] As a further preferred embodiment, the opening of the fan-shaped nozzle is inclined downwards. That is, the opening of the fan-shaped nozzle is inclined towards the internal mixing zone of the mixing container, so that when the acidic solution is sprayed out of the fan-shaped nozzle, it flows directly into the mixture of solid waste powder and solidifying agent, allowing it to fully contact the mixture.

[0040] Furthermore, such as Figure 1 and Figure 2 As shown, the mixer 160 of this embodiment includes a drive mechanism and a stirring shaft 161 connected to the drive mechanism, wherein the drive mechanism is disposed on the first support, and the stirring shaft 161 passes through the mixing container 130.

[0041] It should be noted that this embodiment does not specifically limit the type of mixer. For example, a horizontal spiral mixer can be used. The mixer consists of a mixing shaft and several metal strips wound around the mixing shaft. For details, please refer to [reference needed]. Figure 3 As shown, several metal strips 162 are provided on the stirring shaft 161. These metal strips 162 are spirally wound around the stirring shaft 161 from one end to the other. As the metal strips 162 rotate with the stirring shaft 161, their edges form narrow gaps with the mixed materials, generating strong shearing forces that ensure thorough mixing. It should be understood that the stirring shaft should be located in the central area of ​​the mixing container to ensure sufficient mixing of the solid waste powder and the solidifying agent.

[0042] Furthermore, such as Figure 1 and Figure 2 As shown, the second support 120 of this embodiment includes four vertical support columns, a top support plate 120a, and a bottom support plate 120b. The mixer 160 is located on the top support plate 120a, and the liquid storage tank 141 is located on the bottom support plate 120b. The liquid storage tank 141 is used to store acidic solutions. That is, the mixer is located at the upper part of the second support, matching the height of the mixing container, and the liquid storage tank is located at the lower part of the second support. Similarly, it is preferable to install rubber shock-absorbing pads at the bottom of the four vertical support columns.

[0043] As a further preferred option, such as Figure 1 and Figure 2 As shown, the mixer 160 is fixed to the top support plate of the second bracket 120 by bolts 163, and a rubber pad is provided on the contact surface between the bolts 163 and the top support plate.

[0044] Furthermore, such as Figure 1 and Figure 2 As shown, the solution introduction component 140 also includes a transmission mechanism 142 and a fluid drive component 143. One end of the transmission mechanism 142 is connected to the drive mechanism via a belt drive, and the other end is connected to the fluid drive component 143. The fluid drive component 143 is connected to the liquid storage tank 141. In this way, the transmission mechanism converts the high-speed input of the drive mechanism (such as a motor) into a low-speed output, thereby controlling the output flow rate of the fluid drive component, and thus controlling the amount of acidic solution added into the mixing container.

[0045] It should be noted that this embodiment does not impose specific limitations on the transmission mechanism, fluid drive component, and inlet pipeline. For example, the transmission mechanism can be a speed reducer, the fluid drive component can be a pump, and the inlet pipeline can be a flexible hose, etc.

[0046] It should be further noted that this embodiment does not specifically limit the connection method of the reducer, pump and bottom support plate. For example, bolt fixing can also be used, and a rubber pad is provided between the contact surface of the bolt and the bottom support plate.

[0047] It should still be noted that, such as Figure 1 and Figure 2 As shown, a base 144 is also provided between the liquid storage tank 141 and the bottom support plate 120b in this embodiment. The shape of the base matches the shape of the liquid storage tank. When the liquid storage tank is circular, the base should be a cylindrical structure. Of course, other structures can also be provided according to the shape of the liquid storage tank.

[0048] The application of the device for solidifying heavy metal ions in industrial solid waste powder will be further illustrated below with specific embodiments:

[0049] Example 1

[0050] This example provides a specific application process based on the device structure described above, as follows:

[0051] Industrial solid waste powder and curing agent are fed into the mixing container through the inlet. Gravity forces the powder and curing agent through a one-way flap to enter the container. After the materials have entered, the flap returns to its original position. The agitator and atomizing nozzles are then activated, allowing acidic solution to enter from the liquid storage tank via a liquid inlet pipe and be sprayed into the mixing container. This simultaneous addition of liquid and agitation ensures thorough contact between the acidic solution and the solid waste powder and curing agent. After agitation and liquid addition, the vibration motor is activated to vibrate the mixed powder. Once vibration is complete, the motor is turned off, allowing the material to settle. After settling, the outlet valve flange is opened to release the material. If the material cannot be completely released, the vibration motor can be restarted to release the remaining material.

[0052] This disclosure proposes a device for solidifying heavy metal ions in industrial solid waste powder, which has the following advantages compared to the prior art:

[0053] First, this disclosure uses a method of stirring followed by vibration to ensure uniform mixing of industrial solid waste and solidifying agent, fully encapsulating heavy metals in the industrial solid waste powder. Mechanical vibration compacts the mixture, expelling internal air bubbles, thus significantly improving the solidification effect of heavy metals.

[0054] Secondly, this disclosure improves the mixing effect of materials and increases the leaching effect of heavy metal ions by setting atomizing nozzles at the solution inlet, so that the solution is sprayed into the mixture area of ​​solid waste powder and solidifying agent in an atomized manner, allowing it to fully contact the mixture.

[0055] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A device for solidifying heavy metal ions in industrial solid waste powder, characterized in that, The device includes: The first and second supports are arranged adjacent to each other; A mixing container is disposed on the first support, and the mixing container is provided with at least one solution inlet, at least one vibration motor and a stirrer; A solution introduction component is disposed on the second bracket, and the solution introduction component includes a liquid storage tank and an introduction pipeline, one end of the introduction pipeline is connected to the liquid storage tank, and the other end is connected to the solution inlet; When the mixture of industrial solid waste powder and curing agent enters the mixing container, the solution enters the mixing container from the liquid storage tank through the inlet pipe and the solution inlet, and mixes with the mixture. After mixing is completed, the vibration motor and the agitator are started in sequence.

2. The apparatus according to claim 1, characterized in that, The mixer includes a drive mechanism and a stirring shaft connected to the drive mechanism, wherein... The drive mechanism is mounted on the first support, the stirring shaft passes through the mixing container, and several metal strips are spirally wound on the stirring shaft.

3. The apparatus according to claim 2, characterized in that, The solution introduction assembly further includes a transmission mechanism and a fluid drive component; wherein... One end of the transmission mechanism is connected to the drive mechanism, and the other end is connected to the fluid drive component, which is connected to the liquid storage tank.

4. The apparatus according to claim 1, characterized in that, The solution inlet is equipped with an atomizing nozzle, which includes a connecting portion and a fan-shaped nozzle; wherein... The connecting part is located outside the side wall of the mixing container, and the fan-shaped nozzle is located inside the side wall of the mixing container.

5. The apparatus according to claim 4, characterized in that, The opening of the fan-shaped nozzle is tilted downwards.

6. The apparatus according to claim 1, characterized in that, The mixing container is provided with an inlet at the top and an outlet at the bottom; wherein, The at least one vibration motor is located at the bottom of the mixing container and distributed around the discharge port, and the at least one solution inlet is located on the side wall of the mixing container near the inlet.

7. The apparatus according to claim 6, characterized in that, The bottom of the mixing container is provided with multiple reinforcing ribs, which extend from the discharge port toward the edge of the mixing container.

8. The apparatus according to claim 6, characterized in that, The discharge port is equipped with an opening and closing control element to open when it is necessary to discharge the minerals formed by the reaction of solid waste powder and solidifying agent.

9. The apparatus according to claim 8, characterized in that, The opening and closing control component includes an outlet flange and a valve flange. The outlet flange is installed around the discharge port, and the valve flange is located on the side of the outlet flange away from the discharge port, and a handle is provided on the valve flange.

10. The apparatus according to claim 6, characterized in that, The feed inlet is equipped with a flap-type one-way plate.

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