Low-temperature calcining equipment for producing low-carbon cementing material

Abstract

The utility model discloses low-temperature calcining equipment for producing a low-carbon cementing material, which comprises a calcining box and a steam chamber arranged at the bottom of the calcining box, and the steam chamber generates steam to transfer heat to the calcining box; the calcining box is internally provided with a plurality of groups of calcining transverse tanks, the plurality of groups of calcining transverse tanks are all provided with stirring assemblies, and the plurality of groups of calcining transverse tanks are connected in series to stir and transport materials and discharge the materials through a discharge chamber arranged at the bottom of the calcining box. And the steam chamber at the bottom is conveniently matched, so that steam generated by the steam chamber transfers heat to materials in the calcining transverse tank for calcining, the energy consumption can be obviously reduced under the same yield, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of low-carbon cementitious material production technology, specifically to a low-temperature calcination device for the production of low-carbon cementitious materials. Background Technology

[0002] Low-carbon cementitious materials are a new type of cementitious material prepared by using special activators to induce hydration reactions in potentially active pozzolanic materials such as slag, fly ash, coal gangue, steel slag, and red mud. As a novel, environmentally friendly, and high-performance building material, it has broad development prospects and significant application value. In the future, with continuous technological advancements and sustained policy support, low-carbon cementitious materials will be widely used in more fields, making a significant contribution to promoting the green development of my country's construction industry and achieving carbon neutrality goals.

[0003] Low-temperature calcination equipment generally refers to equipment that calcines materials at temperatures lower than those of traditional high-temperature calcination, and it is widely used in the production of low-carbon cementitious materials.

[0004] While existing devices can achieve calcination of low-carbon cementitious materials, they cannot combine the calcination channel structure with the mixing and stirring structure through structural improvements. As a result, incomplete and uneven calcination often occurs during the calcination process. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a low-temperature calcination equipment for the production of low-carbon cementitious materials. Using this equipment, the length of the conveying channel can be greatly extended within the limited space of the calcination box, which is convenient to cooperate with the steam chamber at the bottom. The steam generated in the steam chamber can transfer heat to the material in the calcination tank for calcination. Under the same output, energy consumption can be significantly reduced and energy utilization efficiency can be improved.

[0006] The technical solution of this utility model is: a low-temperature calcination device for the production of low-carbon cementitious materials, including a calcination box and a steam chamber located at the bottom of the calcination box, wherein the steam chamber generates steam to transfer heat to the calcination box;

[0007] The calcining box is equipped with multiple sets of horizontal calcining tanks, each set of horizontal calcining tanks is equipped with a stirring component, and the multiple sets of horizontal calcining tanks are connected in series to stir and transport the material, and discharge it through the discharge chamber located at the bottom of the calcining box.

[0008] Furthermore, the stirring assembly includes a transmission rod rotatably disposed inside the calcining horizontal tank, the surface of the transmission rod being provided with an auger impeller, and a drive motor capable of driving the transmission rod to rotate is provided on the side wall of the calcining box.

[0009] Furthermore, the auger impellers in the multiple sets of calcining horizontal tanks rotate at the same speed.

[0010] Furthermore, the calcining horizontal tank is provided in four groups, namely the first calcining horizontal tank, the second calcining horizontal tank, the third calcining horizontal tank and the fourth calcining horizontal tank, and the four groups of calcining horizontal tanks are arranged in parallel from top to bottom.

[0011] Furthermore, the calcining horizontal tank has a feed pipe and a discharge port. The four sets of calcining horizontal tanks are connected to each other through the feed pipe and the discharge port to complete the stirring and conveying of materials in the four sets of calcining horizontal tanks.

[0012] Furthermore, each drive motor corresponds to one of the calcining horizontal tanks, and the drive motors are staggered on the left and right side walls of the calcining box.

[0013] Furthermore, it also includes a flow guiding assembly disposed in the calcining box. The flow guiding assembly includes a flow guiding adjustment rod and a flow guiding adjustment plate. One end of the flow guiding adjustment rod passes through the inner wall of the calcining box and abuts against the flow guiding adjustment plate that is movably disposed on the inner wall of the calcining box.

[0014] Furthermore, one end of the flow guiding plate is hinged to the inner wall of the calcining box by a torsion spring, and the other end of the flow guiding plate abuts against the flow guiding rod.

[0015] Furthermore, the flow guiding components are provided in three sets, which correspond to the first calcining horizontal tank, the second calcining horizontal tank and the third calcining horizontal tank respectively. The three sets of flow guiding components are arranged in an alternating manner in the calcining box, and together with the calcining horizontal tank, they divide the inner cavity of the calcining box into an S-shaped airflow channel.

[0016] The beneficial technical effects of this utility model are:

[0017] 1. Multiple sets of calcining horizontal tanks are used as the conveying channels for low-carbon cementitious materials. The feed pipes and discharge interfaces set on the opposite side can greatly extend the length of the conveying channel within the limited space of the calcining box. This facilitates the use of the steam chamber at the bottom, so that the steam generated in the steam chamber can transfer heat to the material in the calcining horizontal tank for calcination. Under the same output, energy consumption can be significantly reduced and energy utilization efficiency can be improved.

[0018] 2. Each calcining horizontal tank is equipped with a transmission rod and an auger impeller. The auger impeller can be driven to rotate, which can stir the material in the calcining horizontal tank, ensuring the uniform heating of the raw materials in the tank and making the low-temperature calcination more stable and uniform.

[0019] 3. The first, second, and third calcining horizontal tanks are equipped with flow guiding and adjusting plates located on the outside of the calcining box. The tilt angle of the flow guiding and adjusting plates is adjusted by using the flow guiding and adjusting rod, so that the flow guiding and adjusting plates are in close contact with the outer wall of the calcining horizontal tanks, and the internal steam channel of the calcining box is set in an S-shape, so that the steam comes into contact with the calcining horizontal tanks smoothly, improving energy utilization efficiency and preventing the steam from rising too quickly and causing heat loss.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal side view structure of this utility model.

[0024] The attached figures are labeled as follows:

[0025] 1. Calcination chamber; 2. Drive motor; 3. Flow guide rod; 301. Flow guide plate; 4. Steam chamber; 5. Discharge chamber; 6. First calcination horizontal tank; 601. Feed pipe; 602. Discharge interface; 603. Transmission rod; 604. Screw impeller; 7. Second calcination horizontal tank; 8. Third calcination horizontal tank; 9. Fourth calcination horizontal tank. Detailed Implementation

[0026] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship described in the embodiments and shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] like Figures 1-3 As shown, this utility model specifically relates to a low-temperature calcination device for the production of low-carbon cementitious materials, including a calcination box 1 and a steam chamber 4 located at the bottom of the calcination box 1, wherein the steam chamber generates steam to transfer heat to the calcination box 1;

[0030] The calcining box 1 is equipped with multiple sets of calcining horizontal tanks, each set of calcining horizontal tanks is equipped with a stirring component, and the multiple sets of calcining horizontal tanks are connected in series to stir and transport the material, and discharge it through the discharge chamber 5 located at the bottom of the calcining box 1.

[0031] Using multiple sets of calcining horizontal tanks as conveying channels for low-carbon cementitious materials, with feed pipes 601 and discharge ports 602 set on opposite sides, can greatly extend the length of the conveying channel within the limited space of the calcining box 1. This facilitates cooperation with the steam chamber 4 at the bottom, allowing the steam generated in the steam chamber 4 to transfer heat to the material in the calcining horizontal tank for calcination. Under the same output, energy consumption can be significantly reduced and energy utilization efficiency can be improved.

[0032] The stirring assembly includes a transmission rod 603 rotatably disposed inside the calcining horizontal tank. The surface of the transmission rod 603 is provided with an auger impeller 604. The side wall of the calcining box 1 is provided with a drive motor 2 capable of driving the transmission rod 603 to rotate.

[0033] By driving the auger impeller 604 to rotate via the drive motor 2, not only can the material in the calcining horizontal tank be fully stirred to ensure the uniform heating of the material in the calcining horizontal tank, but the material can also be transported.

[0034] The auger impellers 604 in the multiple sets of calcining horizontal tanks rotate at the same speed.

[0035] The calcining horizontal jars are provided in four groups, namely the first calcining horizontal jar 6, the second calcining horizontal jar 7, the third calcining horizontal jar 8 and the fourth calcining horizontal jar 9, and the four groups of calcining horizontal jars are arranged in parallel from top to bottom.

[0036] The calcining horizontal tank has a feed pipe 601 and a discharge port 602. The four sets of calcining horizontal tanks are connected to each other through the feed pipe 601 and the discharge port 602 to complete the stirring and conveying of materials in the four sets of calcining horizontal tanks.

[0037] The material enters the first calcining horizontal tank 6 through the feed pipe 601. The auger impeller 604 inside the first calcining horizontal tank 6 agitates and transports the material. It then enters the second calcining horizontal tank 7 through the discharge pipe of the first calcining horizontal tank 6 and the feed pipe 601 of the second calcining horizontal tank 7. Under thorough agitation, the material is sequentially transported to the third calcining horizontal tank 8 and the fourth calcining horizontal tank 9.

[0038] When the material enters the fourth calcining horizontal tank 9, the screw conveyor impeller 604 inside the fourth calcining horizontal tank 9 transports the material to the discharge chamber 5 through the discharge port 602 of the fourth calcining horizontal tank 9.

[0039] The drive motor 2 corresponds one-to-one with the calcining horizontal tank, and the drive motor 2 is staggered on the left and right side walls of the calcining box 1 to complete the stirring and transportation of materials in each calcining horizontal tank.

[0040] It also includes a flow guiding component provided in the calcination box 1. The flow guiding component includes a flow guiding adjustment rod 3 and a flow guiding adjustment plate 301. One end of the flow guiding adjustment rod 3 passes through the inner wall of the calcination box 1 and abuts against the flow guiding adjustment plate 301 that is movably provided in the inner wall of the calcination box 1.

[0041] One end of the flow guiding plate 301 is hinged to the inner wall of the calcining box 1 by a torsion spring, and the other end of the flow guiding plate 301 abuts against the flow guiding rod 3.

[0042] External force is applied to the flow regulating plate 301 by the flow regulating rod 3, thereby bringing the flow regulating plate 301 against the outer wall of the calcining horizontal tank. At this time, the flow regulating plate 301 is located between the flow regulating rod 3 and the calcining horizontal tank.

[0043] During the process of the flow guiding rod 3 applying external force to the flow guiding plate 301, the angle of the flow guiding plate 301 changes, thereby changing the airflow direction in the calcining box 1.

[0044] The flow guiding components are provided in three sets, which correspond to the first calcining horizontal tank 6, the second calcining horizontal tank 7, and the third calcining horizontal tank 8, respectively. The three sets of flow guiding components are arranged in an alternating manner inside the calcining box 1, and together with the calcining horizontal tanks, they divide the inner cavity of the calcining box 1 into an S-shaped airflow channel, so that the steam can come into contact with the calcining horizontal tanks smoothly, thereby improving energy utilization efficiency and avoiding uneven heat caused by the steam rising too quickly.

[0045] Working Principle: For this type of low-temperature calcination equipment used in the production of low-carbon cementitious materials, the flow guiding rods 3 on both the front and rear sides are adjusted first. Utilizing the movable connection between the flow guiding rods 3 and the flow guiding plate 301, the inner flow guiding plate 301 is driven to rotate at an angle, causing it to fit against the calcination horizontal tank. The flow guiding plate 301, in conjunction with the calcination horizontal tank, divides the inner cavity of the calcination chamber 1 into an S-shaped airflow channel. Then, the steam chamber 4 at the bottom is activated, allowing steam to rise upwards. The calcination chamber 1 is preheated. Then, the raw materials for producing low-carbon cementitious materials are conveyed into the first calcination horizontal tank 6 through the feed pipe 601. The auger impeller 604 inside the first calcination horizontal tank 6 is used to mix and agitate the raw materials to ensure uniform heating. Then, under the conveying of the auger impeller 604, the raw materials are sequentially transferred to the bottom calcination horizontal tanks for low-temperature calcination treatment. Finally, the raw materials are discharged into the discharge chamber 5 for centralized collection through the fourth calcination horizontal tank 9 at the bottom.

[0046] The above embodiments are merely specific implementations of this utility model, used to illustrate the technical solutions of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope disclosed in this utility model. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. A low-temperature calcination device for the production of low-carbon cementitious materials, characterized in that, It includes a calcining box (1) and a steam chamber (4) located at the bottom of the calcining box (1), wherein the steam chamber generates steam to transfer heat to the calcining box (1); The calcining box (1) is equipped with multiple sets of calcining horizontal tanks. Each set of calcining horizontal tanks is equipped with a stirring component, and the multiple sets of calcining horizontal tanks are connected in series to stir and transport the material, and discharge it through the discharge chamber (5) located at the bottom of the calcining box (1).

2. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 1, characterized in that, The stirring assembly includes a transmission rod (603) rotatably disposed inside the calcining horizontal tank. The surface of the transmission rod (603) is provided with an auger impeller (604). The side wall of the calcining box (1) is provided with a drive motor (2) capable of driving the transmission rod (603) to rotate.

3. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 2, characterized in that, The auger impellers (604) in the multiple sets of calcining horizontal tanks rotate at the same speed.

4. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 3, characterized in that, The calcining horizontal tanks are provided in four groups, namely the first calcining horizontal tank (6), the second calcining horizontal tank (7), the third calcining horizontal tank (8) and the fourth calcining horizontal tank (9), and the four groups of calcining horizontal tanks are arranged in parallel from top to bottom.

5. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 4, characterized in that, The calcining horizontal tank has a feed pipe (601) and a discharge port (602). The four sets of calcining horizontal tanks are connected to each other through the feed pipe (601) and the discharge port (602) to complete the stirring and conveying of materials in the four sets of calcining horizontal tanks.

6. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 5, characterized in that, The drive motor (2) corresponds one-to-one with the calcining horizontal tank, and the drive motor (2) is staggered on the left and right side walls of the calcining box (1).

7. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 1, characterized in that, It also includes a flow guiding component provided in the calcination box (1), the flow guiding component includes a flow guiding adjustment rod (3) and a flow guiding adjustment plate (301), one end of the flow guiding adjustment rod (3) passes through the inner wall of the calcination box (1) and abuts against the flow guiding adjustment plate (301) which is movably provided in the inner wall of the calcination box (1).

8. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 7, characterized in that, One end of the flow guiding plate (301) is hinged to the inner wall of the calcining box (1) by a torsion spring, and the other end of the flow guiding plate (301) abuts against the flow guiding rod (3).

9. The low-temperature calcination equipment for the production of low-carbon cementitious materials according to claim 8, characterized in that, The flow guiding components are provided in three groups, which correspond to the first calcining horizontal tank (6), the second calcining horizontal tank (7) and the third calcining horizontal tank (8) respectively. The three groups of flow guiding components are arranged in an alternating manner in the calcining box (1) and, together with the calcining horizontal tank, divide the inner cavity of the calcining box (1) into an S-shaped airflow channel.

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