Solid waste-based chromium removal agent adding device

Abstract

The utility model discloses a solid-waste-based chromium remover adding device, which relates to the technical field of cement and comprises a centrifugal drum screen, a rotating shaft and a rotating shaft, the first storage steel bin is arranged below the centrifugal drum screen; the first material level indicator is arranged at the top position of the first storage steel bin; the bottom of the spiral reamer is provided with a first conveying channel; a second storage steel bin; the bottom of the first rotor scale is provided with a second conveying channel; a third material inlet and a third material outlet are formed in the third storage steel bin; the bottom of the second rotor scale is provided with a third conveying channel; the mixer is respectively connected with the tail ends of the first conveying channel, the second conveying channel and the third conveying channel, and the mixer is provided with a fourth conveying channel; and the elevator is connected with the mixer, so that the technical effects of accurately controlling the addition amount of the solid waste-based chromium removal agent and ensuring uniform mixing of materials are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cement, and in particular relates to a solid waste-based chromium removal agent adding device. Background Art

[0002] The solid waste-based chromium removal agent addition device is a device used to reduce the hexavalent chromium content of ordinary Portland cement in finished cement. The design principle of this device is mainly to use the automation system DCS to control the solid waste-based chromium removal agent and the reference cement to achieve uniform mixing through the mixer, ultimately achieving the purpose of reducing the hexavalent chromium content of cement.

[0003] At present, solid waste-based chromium removal agents have the following problems: the materials have slight compaction, large particle size, and uneven incoming materials, which makes it difficult to break up the solid waste-based chromium removal agents during the mixing process, and uneven test results often occur during the preparation process.

[0004] There are several different forms of solid waste-based chromium removal agent addition devices in the prior art, but due to unreasonable designs, the materials cannot achieve the expected effect during the mixing process, causing unnecessary losses to the company. Conventional solid waste-based chromium removal agent addition devices play a certain role in mixing, but cannot guarantee the uniformity of the solid waste-based chromium removal agent during the mixing process. Summary of the invention

[0005] The embodiment of the present application provides a solid waste-based chromium removal agent addition device, which solves the technical problem that the solid waste-based chromium removal agent addition device in the prior art cannot ensure the uniformity of the solid waste-based chromium removal agent during the mixing process, resulting in the material failing to achieve the expected effect during the mixing process. The embodiment of the present application achieves the ability to accurately control the amount of solid waste-based chromium removal agent added, realizes automated addition, reduces the tediousness and errors of manual operation, improves work efficiency, and achieves the purpose of uniformly stirring and adding the chromium removal agent. The whole process reduces the particle size of the material, ensuring the technical effect of uniform mixing of the material.

[0006] The embodiment of the utility model provides a solid waste-based chromium removal agent addition device, which is connected to a DCS automation system, and includes: a centrifugal drum screen, on which a first feed port and a first discharge port are provided, so that the solid waste-based chromium removal agent enters the centrifugal drum screen through the first feed port for screening; a first storage steel bin, which is provided below the centrifugal drum screen, and the first storage steel bin is connected to the centrifugal drum screen through the first discharge port; a first material level meter, which is provided at the top position of the first storage steel bin; a spiral reamer, which is provided below the first storage steel bin, and the bottom of the spiral reamer has a first conveying channel; a second storage steel bin, which is provided with a second feed port and a second discharge port inlet, wherein the ultrafine powder material enters the second storage steel silo through the second inlet; a first rotor scale, wherein the first rotor scale is arranged at the position of the second outlet, and the bottom of the first rotor scale has a second conveying channel; a third storage steel silo, wherein the third storage steel silo is provided with a third inlet and a third outlet, wherein the vertical mill cement material enters the third storage steel silo through the third inlet; a second rotor scale, wherein the second rotor scale is arranged at the position of the third outlet, and the bottom of the second rotor scale has a third conveying channel; a mixer, wherein the mixer is respectively connected to the ends of the first conveying channel, the second conveying channel, and the third conveying channel, and the mixer has a fourth conveying channel; an elevator, wherein the elevator is connected to the mixer through the fourth conveying channel.

[0007] Preferably, the adding device further comprises: a second material level meter, and the second material level meter is arranged at the top position of the second storage steel silo.

[0008] Preferably, the adding device further comprises: a third material level meter, and the third material level meter is arranged at the top position of the third storage steel silo.

[0009] Preferably, the first material level meter, the second material level meter and the third material level meter are all radar level meters.

[0010] Preferably, the adding device further comprises: an air compressor, and the air compressor is connected to the mixer.

[0011] Preferably, the fourth conveying channel is a chute.

[0012] Preferably, the adding device further comprises: a sampler, and the sampler is fixedly arranged at a side edge position of the chute.

[0013] Preferably, the mixer stirs and mixes the treated solid waste-based chromium removal agent, the treated ultrafine powder material, and the treated vertical mill cement material.

[0014] Preferably, the spiral reamer is a quantitative variable frequency spiral reamer.

[0015] Preferably, the first steel storage silo, the second steel storage silo, and the third steel storage silo are all steel plate silos.

[0016] The above one or more technical solutions in the embodiments of the present utility model have at least one or more of the following technical effects:

[0017] A solid waste-based chromium removal agent adding device is provided in an embodiment of the utility model, and the solid waste-based chromium removal agent adding device is connected to a DCS automation system, and the device comprises: a centrifugal drum screen, a first storage steel bin, a first material level meter, a spiral reamer, a second storage steel bin, a first rotor scale, a third storage steel bin, a second rotor scale, a mixer, and an elevator, wherein a first feed inlet and a first discharge port are provided on the centrifugal drum screen, so that the solid waste-based chromium removal agent enters the centrifugal drum screen through the first feed inlet for screening; the first storage steel bin is provided below the centrifugal drum screen, and the first storage steel bin is connected to the centrifugal drum screen through the first discharge port; the first material level meter is provided at the top position of the first storage steel bin; the spiral reamer is provided below the first storage steel bin, and The bottom of the spiral reamer is provided with a first conveying channel; the second storage steel silo is provided with a second feed port and a second discharge port, wherein the ultrafine powder material enters the second storage steel silo through the second feed port; the first rotor scale is arranged at the position of the second discharge port, and the bottom of the first rotor scale is provided with a second conveying channel; the third storage steel silo is provided with a third feed port and a third discharge port, wherein the vertical mill cement material enters the third storage steel silo through the third feed port; the second rotor scale is arranged at the position of the third discharge port, and the bottom of the second rotor scale is provided with a third conveying channel; the mixer is respectively connected to the ends of the first conveying channel, the second conveying channel, and the third conveying channel, and the mixer has a fourth conveying channel; the elevator is connected to the mixer through the fourth conveying channel. Among them, the solid waste-based chromium removal agent is broken up after entering the centrifugal drum screen, and then the material is sorted into the lower solid waste-based chromium removal agent steel bin under the action of centrifugation. The material bin position is controlled by the DCS system, and then the material is mixed through the lower quantitative variable frequency spiral reamer through the DCS system to control the mixing ratio. It enters the mixer at the same time through the second rotor scale according to a certain proportion and the first rotor scale according to a certain proportion. The material is blown up and suspended by the air compressor, and then mixed and mixed and enters the elevator into the finished product warehouse, so as to achieve the purpose of uniform mixing and adding the chromium removal agent. Thereby solving the technical problem that the solid waste-based chromium removal agent addition device in the prior art cannot ensure the uniformity of the solid waste-based chromium removal agent in the mixing process, resulting in the material failing to achieve the expected effect in the mixing process, and achieving the ability to accurately control the amount of solid waste-based chromium removal agent added, realize automatic addition, reduce the tediousness and errors of manual operation, improve work efficiency, and achieve the purpose of uniform mixing and adding the chromium removal agent. The whole process makes the particle size of the material smaller and ensures the technical effect of uniform mixing of the material.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic structural diagram of a solid waste-based chromium removal agent adding device according to an embodiment of the utility model.

[0020] Explanation of the accompanying drawings: centrifugal drum screen 1, first storage steel bin 2, first material level meter 3, spiral reamer 4, second storage steel bin 5, first rotor scale 6, second material level meter 7, third storage steel bin 8, second rotor scale 9, third material level meter 10, mixer 11, fourth conveying channel 12, elevator 13, air compressor 14, sampler 15. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a solid waste-based chromium removal agent addition device to solve the technical problem that the solid waste-based chromium removal agent addition device in the prior art cannot ensure the uniformity of the solid waste-based chromium removal agent during the mixing process, resulting in the material failing to achieve the expected effect during the mixing process.

[0022] The technical solution in the embodiment of the utility model has the following overall structure: it is connected to the DCS automation system through a device, and the device includes: a centrifugal drum screen, the centrifugal drum screen is provided with a first feed port and a first discharge port, so that the solid waste-based chromium removal agent enters the centrifugal drum screen through the first feed port for screening; a first storage steel bin, the first storage steel bin is arranged below the centrifugal drum screen, and the first storage steel bin is connected to the centrifugal drum screen through the first discharge port; a first material level meter, the first material level meter is arranged at the top position of the first storage steel bin; a spiral reamer, the spiral reamer is arranged below the first storage steel bin, and the bottom of the spiral reamer has a first conveying channel; a second storage steel bin, the second storage steel bin is provided with a second feed port and a second discharge port, wherein the ultrafine powder material enters the second storage steel bin through the second feed port; a first rotor scale, the first rotor scale is arranged in the The second discharge port is located at the bottom of the first rotor scale, and a second conveying channel is provided at the bottom; a third storage steel silo is provided with a third inlet and a third discharge port, wherein the vertical mill cement material enters the third storage steel silo through the third inlet; a second rotor scale, the second rotor scale is arranged at the third discharge port, and a third conveying channel is provided at the bottom of the second rotor scale; a mixer, the mixer is respectively connected to the ends of the first conveying channel, the second conveying channel and the third conveying channel, and the mixer has a fourth conveying channel; an elevator, the elevator is connected to the mixer through the fourth conveying channel, thereby achieving the ability to accurately control the amount of solid waste-based chromium removal agent added, realizing automatic addition, reducing the tediousness and errors of manual operation, improving work efficiency, and achieving the purpose of uniformly stirring and adding the chromium removal agent. The whole process makes the particle size of the material smaller, ensuring the technical effect of uniform mixing of the material.

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] This embodiment provides a solid waste-based chromium removal agent adding device, which is connected to the DCS automation system. Please refer to Figure 1 , as follows:

[0026] The solid waste-based chromium removal agent adding device comprises: a centrifugal drum screen 1, on which a first feed inlet and a first discharge port are arranged, so that the solid waste-based chromium removal agent enters the centrifugal drum screen 1 through the first feed inlet for screening.

[0027] Specifically, the centrifugal drum screen 1 is a component used for pre-screening in the solid waste-based chromium removal agent addition device. Therefore, a first feed port is provided at the top of the centrifugal drum screen 1, and a first discharge port is provided at the bottom thereof, so that the solid waste-based chromium removal agent can enter the interior of the centrifugal drum screen 1 through the first feed port, and then be broken up after entering the interior of the centrifugal drum screen 1, and then the broken up materials are sorted into the lower structure under the action of centrifugation. Through this pre-screening form, the technical effect of improving the stability of the solid waste-based chromium removal agent entering the mixer and reducing the particle size of the chromium removal agent entering the mixer can be achieved.

[0028] Furthermore, the solid waste-based chromium removal agent addition device is connected to the DCS automation system, which can improve the processing efficiency, realize an efficient and continuous process, and automatically manage the addition device. In addition, in order to ensure the chromium removal effect, it is also necessary to regularly check the control indicators of cement products. This includes regularly checking the control indicators of cement products every hour and calibrating the metering equipment every day. The solid waste-based chromium removal agent addition device is an efficient addition device that can effectively control the hexavalent chromium content in cement. At the same time, attention should also be paid to the use and maintenance of the equipment to ensure its normal operation and treatment effect.

[0029] The solid waste-based chromium removal agent adding device also includes: a first storage steel bin 2, wherein the first storage steel bin 2 is arranged below the centrifugal drum screen 1, and the first storage steel bin 2 is connected to the centrifugal drum screen 1 through the first discharge port.

[0030] Specifically, the first storage steel silo 2 is a structure for storing solid waste-based chromium removal agents in this embodiment, and the first storage steel silo 2 is located below the centrifugal drum screen 1, that is, the first storage steel silo 2 is located at the position where the first discharge port of the centrifugal drum screen 1 is set, so that the first storage steel silo 2 can be connected to the centrifugal drum screen 1 through the first discharge port. For example, in actual use, a φ3m steel plate silo is set for solid waste-based chromium removal agents, with a storage capacity of 3t, which is sent to the mixer through a Schneider DCS-controlled quantitative variable frequency reamer to mix with the reference cement and composite ultrafine powder.

[0031] The solid waste-based chromium removal agent adding device also includes: a first material level meter 3 , which is arranged at the top position of the first storage steel silo 2 .

[0032] Specifically, the first material level meter 3 is a component in the solid waste-based chromium removal agent addition device for monitoring the material stored in the steel silo. The first material level meter 3 is installed at the top position of the first storage steel silo 2, and in this embodiment, the first material level meter 3 is preferably a radar level meter. Therefore, through the installed radar level meter, when monitoring the steel silo material is close to being full or close to being empty, automatic stopping or feeding can be achieved to ensure uninterrupted feeding of the solid waste-based chromium removal agent.

[0033] The solid waste-based chromium removal agent adding device also includes: a spiral reamer 4, which is arranged below the first storage steel bin 2, and the bottom of the spiral reamer 4 has a first conveying channel.

[0034] Furthermore, the spiral reamer 4 is a quantitative variable frequency spiral reamer.

[0035] Specifically, the spiral reamer 4 is a component used to accurately control the amount of solid waste-based chromium removal agent added in the solid waste-based chromium removal agent addition device. The spiral reamer 4 is installed at the lower part of the first storage steel silo 2, and a first conveying channel is provided at the bottom of the spiral reamer 4. In this embodiment, the spiral reamer 4 is preferably a quantitative variable frequency spiral reamer. In this embodiment, the material bin is controlled by the DCS system, and then the quantitative variable frequency spiral reamer 4 at the lower part controls the mixing ratio through the DCS system for re-mixing. When using the solid waste-based chromium removal agent addition device, it is necessary to accurately control the amount of solid waste-based chromium removal agent added, so it is necessary to use a variable frequency quantitative rotary reamer to achieve precise measurement to achieve the best mixing ratio. Balances, charging barrels, etc. can be stored on site for each shift detection. When the material flow rate changes beyond the set range, the central control room can be notified immediately to adjust the HZ value of the frequency conversion equipment to reach the preset parameters. The storage location is usually selected above the conveying trough of the mixing station or other locations.

[0036] The solid waste-based chromium removal agent addition device also includes: a second storage steel bin 5, on which a second feed inlet and a second feed outlet are provided, wherein the ultrafine powder material enters the second storage steel bin 5 through the second feed inlet.

[0037] Specifically, the second storage steel silo 5 is a structure for storing ultrafine powder in this embodiment. A second feed port is installed on the top of the second storage steel silo 5, and a second discharge port is installed on the bottom, so that the ultrafine powder material can enter the interior of the second storage steel silo 5 through the second feed port. For example, a φ10m steel plate silo with a storage capacity of 800t is set for ultrafine powder storage. A one-in and two-out bottom unloading device is set under the silo. One way is for ultrafine powder in bulk, and the other way is sent to the mixer for mixing cement after being measured by a rotor scale.

[0038] The solid waste-based chromium removal agent adding device also includes: a first rotor scale 6, which is arranged at the position of the second discharge port, and the bottom of the first rotor scale 6 has a second conveying channel.

[0039] Furthermore, the adding device also includes: a second material level meter 7, and the second material level meter 7 is arranged at the top position of the second storage steel silo 5.

[0040] Specifically, the first rotor scale 6 is installed at the second discharge port at the bottom of the second storage steel silo 5, and a second material level meter 7 is installed on the upper part of the second storage steel silo 5. As mentioned above, the radar material level meter installed can achieve automatic material stopping or feeding when monitoring the steel silo material is close to full or close to empty. Further, a second conveying channel is opened at the bottom of the first rotor scale 6, and the composite ultrafine powder can be conveyed to the next process through the second conveying channel according to a certain proportion through the first rotor scale 6.

[0041] The solid waste-based chromium removal agent addition device also includes: a third storage steel bin 8, on which a third material inlet and a third material outlet are provided, wherein the vertical mill cement material enters the third storage steel bin 8 through the third material inlet.

[0042] Furthermore, the first steel storage silo 2, the second steel storage silo 5, and the third steel storage silo 8 are all steel plate silos.

[0043] Specifically, the third storage steel silo 8 is a structure used for vertical mill cement storage in this embodiment. Similarly, a third feed port is provided at the top of the third storage steel silo 8, and a third discharge port is provided at the bottom, so that the vertical mill cement material can enter the third storage steel silo 8 through the third feed port. In this embodiment, the first storage steel silo 2, the second storage steel silo 5, and the third storage steel silo 8 are all steel silos as preferred, and can be specifically set according to actual needs. No specific restrictions are made in this embodiment. For example, by modifying the cement conveying chute on the top of the cement silo, the cement discharged from the vertical mill is transported through the chute into the reference cement silo for storage, namely the third storage steel silo 8. The reference cement storage is provided with a φ10m steel silo with a storage capacity of 1400t. A discharge port is provided at the bottom of the silo. The discharged reference cement is measured by a rotor scale and then sent to a mixer for mixing cement. After mixing, the finished cement is sequentially sent through the chute and the elevator to the cement silo for storage.

[0044] The solid waste-based chromium removal agent adding device further includes: a second rotor scale 9, the second rotor scale 9 is arranged at the position of the third discharge port, and the bottom of the second rotor scale 9 has a third conveying channel;

[0045] The solid waste-based chromium removal agent adding device also includes: a third material level meter 10 , and the third material level meter 10 is arranged at the top position of the third storage steel silo 8 .

[0046] Furthermore, the first material level meter 3 , the second material level meter 7 , and the third material level meter 10 are all radar level meters.

[0047] Specifically, the second rotor scale 9 is installed at the position of the third discharge port at the bottom of the third storage steel silo 8, and a third material level meter 10 is installed on the upper part of the third storage steel silo 8. In this embodiment, the first material level meter 3, the second material level meter 7, and the third material level meter 10 are preferably radar level meters. As mentioned above, through the installed radar level meter, it is possible to achieve automatic stopping or loading when monitoring the steel silo material is close to being full or close to being empty. Furthermore, a third conveying channel is opened at the bottom of the second rotor scale 9, and the second rotor scale 9 can convey the reference cement to the next process through the third conveying channel according to a certain proportion.

[0048] The solid waste-based chromium removal agent adding device further includes: a mixer 11, the mixer 11 is connected to the ends of the first conveying channel, the second conveying channel, and the third conveying channel respectively, and the mixer 11 has a fourth conveying channel 12;

[0049] Furthermore, the mixer 11 stirs and mixes the treated solid waste-based chromium removal agent, the treated ultrafine powder material, and the treated vertical mill cement material.

[0050] Furthermore, the fourth conveying channel 12 is an inclined slot.

[0051] Specifically, the mixer 11 is a structure for achieving material mixing in this embodiment. In this embodiment, the mixer 11 is preferably a double-shaft mixer. The mixer 11 is respectively connected to the ends of the first conveying channel at the bottom of the spiral reamer 4, the second conveying channel at the bottom of the first rotor scale 6, and the third conveying channel at the bottom of the second rotor scale 9. That is, the treated solid waste-based chromium removal agent, the treated ultrafine powder material, and the treated vertical mill cement material can be mixed and stirred through the mixer 11, and a fourth conveying channel 12 is provided at the end of the mixer 11. In this embodiment, the fourth conveying channel 12 is preferably a chute.

[0052] The solid waste-based chromium removal agent adding device further comprises: an elevator 13 , and the elevator 13 is connected to the mixer 11 via the fourth conveying channel 12 .

[0053] The solid waste-based chromium removal agent adding device further comprises: an air compressor 14 , and the air compressor 14 is connected to the mixer 11 .

[0054] The solid waste-based chromium removal agent adding device further comprises: a sampler 15, and the sampler 15 is fixedly arranged at a side edge position of the chute.

[0055] Specifically, the air compressor 14 is connected to the mixer 11, and the air compressor 14 can be used to blow up and suspend the material, and then stir and mix it into the elevator 13 to enter the finished product warehouse, so as to achieve the purpose of uniform stirring and adding the chromium removal agent. Furthermore, a sampler 15 is installed at a side position of the fourth conveying channel 12. Therefore, the solid waste-based chromium removal agent addition device changes the previous single batching method to a multi-channel batching method, and upgrades from a single compounded ultrafine powder of the benchmark cement to a benchmark cement that can also be compounded with a solid waste-based chromium removal agent, thereby achieving the purpose of uniform mixing. It is suitable for conventional alternative cement, composite ultrafine powder, and solid waste-based chromium removal agent mixtures. It has a very wide range of uses and good effects.

[0056] The main working principle of the solid waste-based chromium removal agent addition device is as follows: the solid waste-based chromium removal agent is broken up after entering the centrifugal drum screen 1, and the solid waste-based chromium removal agent fineness is controlled at 2.0% to 4.0% by a 45μm square hole screen. The material is sorted into the lower solid waste-based chromium removal agent steel bin 2 under the action of centrifugation (a first material level meter 3 is installed on the upper part of the chromium removal agent steel bin), and the material bin position is controlled by the DCS system, and then the material is re-doped through the lower quantitative variable frequency spiral reamer 4 through the DCS system to control the dosing ratio to 0.06% to 0.1%. A third material level meter 10 is installed on the top of the third storage steel silo 8 (reference cement steel silo), and the second material level meter 7 is installed on the top of the second storage steel silo 5 (composite ultrafine powder steel silo), and the materials enter the mixer 11 at the same time through the first rotor scale 6 at a ratio of 4% to 6%. The materials are blown up and suspended by the air compressor 14, and then stirred and mixed, and then enter the elevator 13 to enter the finished product warehouse, so as to achieve the purpose of uniform stirring and adding chromium removal agent.

[0057] The whole process makes the particle size of the material smaller, ensuring uniform mixing of the material. Large-particle materials can only be sorted out when they reach a certain fineness before entering, thus ensuring the uniformity of the mixing. Then, the Schneider DCS microcomputer system and quantitative variable frequency rotary reamer accurately measure the material, achieving precise measurement and batching, which helps enterprises increase revenue, reduce costs, and increase efficiency.

[0058] Therefore, the advantages of the solid waste-based chromium removal agent addition device in this embodiment include the following aspects: precise control: it can accurately control the amount of solid waste-based chromium removal agent added, ensuring the chromium removal effect while avoiding waste and excessive use; automated operation: it can realize automated addition, reduce the tediousness and errors of manual operation, and improve work efficiency; strong adaptability: it can adapt to solid waste-based chromium removal agents of different types and particle sizes, and has good compatibility; safe and reliable: it adopts a sealed design to prevent leakage of chromium removal agents and ensure the safety of operators; cost saving: by precise addition and control of dosage, the waste of solid waste-based chromium removal agents can be reduced and costs can be reduced; environmentally friendly and sustainable: the use of solid waste-based chromium removal agents helps to reduce pollution to the environment and promote sustainable development.

[0059] The above one or more technical solutions in the embodiments of the present utility model have at least one or more of the following technical effects:

[0060] A solid waste-based chromium removal agent adding device is provided in an embodiment of the utility model, and the solid waste-based chromium removal agent adding device is connected to a DCS automation system, and the device comprises: a centrifugal drum screen, a first storage steel bin, a first material level meter, a spiral reamer, a second storage steel bin, a first rotor scale, a third storage steel bin, a second rotor scale, a mixer, and an elevator, wherein a first feed inlet and a first discharge port are provided on the centrifugal drum screen, so that the solid waste-based chromium removal agent enters the centrifugal drum screen through the first feed inlet for screening; the first storage steel bin is provided below the centrifugal drum screen, and the first storage steel bin is connected to the centrifugal drum screen through the first discharge port; the first material level meter is provided at the top position of the first storage steel bin; the spiral reamer is provided below the first storage steel bin, and The bottom of the spiral reamer is provided with a first conveying channel; the second storage steel silo is provided with a second feed port and a second discharge port, wherein the ultrafine powder material enters the second storage steel silo through the second feed port; the first rotor scale is arranged at the position of the second discharge port, and the bottom of the first rotor scale is provided with a second conveying channel; the third storage steel silo is provided with a third feed port and a third discharge port, wherein the vertical mill cement material enters the third storage steel silo through the third feed port; the second rotor scale is arranged at the position of the third discharge port, and the bottom of the second rotor scale is provided with a third conveying channel; the mixer is respectively connected to the ends of the first conveying channel, the second conveying channel, and the third conveying channel, and the mixer has a fourth conveying channel; the elevator is connected to the mixer through the fourth conveying channel. Among them, the solid waste-based chromium removal agent is broken up after entering the centrifugal drum screen, and then the material is sorted into the lower solid waste-based chromium removal agent steel bin under the action of centrifugation. The material bin position is controlled by the DCS system, and then the material is mixed through the lower quantitative variable frequency spiral reamer through the DCS system to control the mixing ratio. It enters the mixer at the same time through the second rotor scale according to a certain proportion and the first rotor scale according to a certain proportion. The material is blown up and suspended by the air compressor, and then mixed and mixed and enters the elevator into the finished product warehouse, so as to achieve the purpose of uniform mixing and adding the chromium removal agent. Thereby solving the technical problem that the solid waste-based chromium removal agent addition device in the prior art cannot ensure the uniformity of the solid waste-based chromium removal agent in the mixing process, resulting in the material failing to achieve the expected effect in the mixing process, and achieving the ability to accurately control the amount of solid waste-based chromium removal agent added, realize automatic addition, reduce the tediousness and errors of manual operation, improve work efficiency, and achieve the purpose of uniform mixing and adding the chromium removal agent. The whole process makes the particle size of the material smaller and ensures the technical effect of uniform mixing of the material.

[0061] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0062] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A solid waste-based chromium removal agent adding device, the device is connected to a DCS automation system, characterized in that: The device comprises: A centrifugal drum screen, wherein the centrifugal drum screen is provided with a first feed inlet and a first discharge inlet, so that the solid waste-based chromium removal agent enters the centrifugal drum screen through the first feed inlet for screening; a first steel storage bin, wherein the first steel storage bin is disposed below the centrifugal drum screen, and the first steel storage bin is connected to the centrifugal drum screen through the first discharge port; A first material level meter, which is arranged at the top of the first storage steel silo; A spiral reamer, wherein the spiral reamer is arranged below the first steel storage bin, and a first conveying channel is provided at the bottom of the spiral reamer; A second storage steel silo, wherein the second storage steel silo is provided with a second feed inlet and a second discharge inlet, wherein the ultrafine powder material enters the second storage steel silo through the second feed inlet; a first rotor scale, wherein the first rotor scale is arranged at the position of the second discharge port, and a second conveying channel is provided at the bottom of the first rotor scale; A third storage steel silo, wherein the third storage steel silo is provided with a third material inlet and a third material outlet, wherein the vertical mill cement material enters the third storage steel silo through the third material inlet; a second rotor scale, wherein the second rotor scale is arranged at the position of the third discharge port, and a third conveying channel is provided at the bottom of the second rotor scale; A mixer, the mixer is connected to the ends of the first conveying channel, the second conveying channel, and the third conveying channel respectively, and the mixer has a fourth conveying channel; An elevator is connected to the mixer through the fourth conveying channel.

2. The solid waste-based chromium removal agent adding device according to claim 1, characterized in that: The adding device also includes: A second material level meter is arranged at the top position of the second storage steel silo.

3. The solid waste-based chromium removal agent adding device according to claim 2, characterized in that: The adding device also includes: A third material level meter is arranged at the top position of the third storage steel silo.

4. The solid waste-based chromium removal agent adding device according to claim 3, characterized in that: The first material level meter, the second material level meter and the third material level meter are all radar material level meters.

5. The solid waste-based chromium removal agent adding device according to claim 1, characterized in that: The adding device also includes: An air compressor is connected to the mixer.

6. The solid waste-based chromium removal agent adding device according to claim 1, characterized in that: The fourth conveying channel is a chute.

7. The solid waste-based chromium removal agent adding device according to claim 6, characterized in that: The adding device also includes: A sampler is fixedly arranged at a side edge of the chute.

8. The solid waste-based chromium removal agent adding device according to claim 1, characterized in that: The mixer stirs and mixes the treated solid waste-based chromium removal agent, the treated ultrafine powder material, and the treated vertical mill cement material.

9. The solid waste-based chromium removal agent adding device according to claim 1, characterized in that: The spiral reamer is a quantitative variable frequency spiral reamer.

10. The solid waste-based chromium removal agent adding device according to claim 1, characterized in that: The first steel storage silo, the second steel storage silo, and the third steel storage silo are all steel plate silos.

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