Maintenance device for unfired ceramsite

Abstract

The utility model relates to the field of preparation of unfired ceramsite, and discloses a curing device for unfired ceramsite. The maintenance device is arranged in an open-air environment and comprises a maintenance bin, the top and the periphery of the maintenance bin have light transmittance, and a maintenance area used for stacking the unfired ceramsite is arranged in the maintenance bin; the heat preservation cover is movably arranged on the periphery of the maintenance bin in a covering mode; the heating component is arranged in the curing bin; and the supporting bottom plate is used for supporting the curing bin, the heat preservation cover and the heating component. According to the scheme, the problems of long maintenance period, high maintenance cost, low production efficiency and the like of the unfired ceramsite can be solved, so that the purposes of improving the quality of finished products, saving the production cost and accelerating the production efficiency are achieved.

Description

Technical Field

[0001] The present invention belongs to the field of unfired ceramsite preparation, and specifically relates to a curing device for unfired ceramsite. Background Art

[0002] Ceramic particles are regular spheres or irregular ceramic particles with certain strength and particle size, mostly 5-25mm. Ceramic particles have a hard shell on the surface and are porous inside, with good physical, chemical and hydraulic properties. Ceramic particles have high strength, low density, large specific surface area, high porosity, strong adsorption and interception ability, acid and heat resistance, water and air insulation, and heat insulation. Ceramic particles are widely used in building materials, gardening, food and beverage, refractory and thermal insulation materials, chemical industry, petroleum and other departments.

[0003] The preparation process of unfired ceramsite is roughly as follows: the raw materials, auxiliary materials and cementitious materials are crushed, ground, mixed and then formed into balls, and then cured (no roasting process is required) to obtain the finished unfired ceramsite. Unfired ceramsite usually needs to be cured in an environment with a temperature of 30°C to 70°C and a humidity of 50% to 100% to enhance its own strength. In the prior art, if the unfired ceramsite is stacked in a warehouse and naturally cured, the curing cycle is long and the quality of the finished product is uneven; if the unfired ceramsite is canned and heated for curing, the production energy consumption is high and the cost is high. In summary, both of the above methods are difficult to achieve the purpose of efficient and low-cost production of unfired ceramsite. Utility Model Content

[0004] The purpose of this scheme is to provide a curing device for unfired ceramsite, which is used to solve the problems of long curing period and high production cost of unfired ceramsite, so as to achieve the effect of short curing time, high quality of finished products and saving production costs.

[0005] In order to achieve the above purpose, the present invention provides a curing device for unfired ceramsite, which is placed in an open-air environment and includes:

[0006] The curing bin has light-transmitting top and surroundings, and is provided with a curing area for stacking the unfired ceramsite;

[0007] A heat preservation cover, which is a movable cover arranged on the outer periphery of the curing bin;

[0008] A heating component is arranged inside the curing chamber;

[0009] A support bottom plate supports the curing bin, the heat preservation cover and the heating component.

[0010] Specifically, it also includes a belt conveyor longitudinally arranged in the curing bin, the belt conveyor includes concave rollers and a conveyor belt wound thereon, and the concave rollers are arranged at intervals along the longitudinal direction.

[0011] Furthermore, a material baffle plate is provided inside the curing bin, and the material baffle plates are respectively located on both sides of the conveyor belt, and the material baffle plate and the conveyor belt enclose the curing area.

[0012] Specifically, the curing bin includes a support frame and a light-transmitting plate laid on the support frame; the middle upper part of the support frame is raised, and the light-transmitting plate is laid to form a top surface of the curing bin with a high middle and low edges.

[0013] Specifically, a feed port and a discharge port are respectively provided at both ends of the curing bin, and a downwardly inclined chute is provided on the feed port or the discharge port.

[0014] Specifically, the heat-insulating cover includes a retaining frame and a first heat-insulating material covering the retaining frame; the retaining frames are provided in multiple groups with gradually varying sizes, the retaining frames can be nested and telescoped with each other, and the first heat-insulating material is movably covered on the outer periphery of the curing bin.

[0015] Furthermore, the first thermal insulation material is at least one of polystyrene, foamed polyurethane, foamed concrete, and EPS particle concrete, or the first thermal insulation material is a vacuum insulation panel.

[0016] Furthermore, a pulley is provided at the lower end of the retaining frame, and a slide rail is provided on the supporting bottom plate; the pulley rolls on the slide rail to guide the retaining frame to be nested and telescopic.

[0017] Specifically, the heating component includes electric heating wires, which cover the height range of the curing area, and a plurality of groups of the electric heating wires are arranged at intervals along the longitudinal direction on the back side of the baffle plate.

[0018] Specifically, a guide groove is provided on the supporting bottom plate, and the guide groove is arranged along the bottom edge of the curing bin.

[0019] Specifically, the curing device further includes a temperature control component or a humidity control component arranged in the curing chamber; the temperature control component includes a temperature sensor and a fan; the humidity control component includes a humidity sensor and a humidifier.

[0020] Specifically, the curing device also includes an exhaust fan and a humidifier; the exhaust fan is located at the middle top of the curing bin, and is used to reduce the humidity and temperature in the curing bin; the humidifier is located at the top of both sides of the curing bin, and is used to increase the humidity in the curing bin.

[0021] Compared with the prior art, the beneficial effects of this solution are:

[0022] This solution uses a light-transmitting curing bin, a heating component and a heat-insulating cover, and comprehensively utilizes sunlight radiation and heating by the heating component to achieve a combination of sunlight curing and heating curing, so that the temperature and humidity in the relatively closed curing area always meet the optimal curing conditions for the unfired expanded clay, resulting in a short curing time for the unfired expanded clay, high quality of the finished product and low energy consumption in production, thereby solving the problems of long curing cycle and high production cost of the unfired expanded clay.

[0023] Other features and advantages of the implementation of this solution will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the implementation of the present solution and constitute a part of the specification. Together with the following specific implementation, they are used to explain the implementation of the present solution, but do not constitute a limitation on the implementation of the present solution. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0025] Figure 1 It is a longitudinal cross-sectional view of the curing device when the heat preservation cover is closed;

[0026] Figure 2 It is a longitudinal cross-sectional view of the curing device when the heat preservation cover is opened;

[0027] Figure 3 is a top sectional view of the maintenance device;

[0028] Figure 4 It is a transverse cross-sectional view of the middle position of the maintenance device;

[0029] Figure 5 This is a partial enlarged view of point A of the maintenance device.

[0030] Explanation of the reference numerals: curing bin 1, curing area 11, material baffle plate 12, support frame 13, light-transmitting plate 14, feed port 15, discharge port 16, chute 17, thermal insulation cover 2, retaining frame 21, first thermal insulation material 22, pulley 23, heating component 3, electric heating wire 31, supporting bottom plate 4, slide rail 41, guide groove 42, second thermal insulation material 43, belt conveyor 5, concave roller 51, conveyor belt 52, fan exchanger 61, humidifier 62. DETAILED DESCRIPTION

[0031] The specific implementation of this solution is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain this solution, and is not used to limit this solution.

[0032] like Figures 1 to 5 As shown, this scheme provides a curing device for unfired ceramsite, which is placed in an open-air environment and includes:

[0033] The curing bin 1 has good light transmittance to the top and the surroundings, good sealing, and is provided with a curing area 11 for stacking the unfired ceramsite;

[0034] A heat preservation cover 2, which is a movable cover arranged on the outer periphery of the curing chamber 1;

[0035] A heating component 3 is arranged inside the curing chamber 1;

[0036] The support bottom plate 4 supports the curing chamber 1 , the heat preservation cover 2 and the heating component 3 .

[0037] In this scheme, the curing chamber 1 is used to provide a relatively closed curing environment with a certain temperature and humidity for the unfired ceramsite. When there is sufficient sunlight, the heat preservation cover 2 is opened, and the curing chamber 1 is exposed to the sunlight. The heat radiated by the sunlight causes the temperature in the curing chamber 1 to rise and reach the temperature required for the curing of the unfired ceramsite, i.e., sunlight curing. When there is no sunlight, the heat preservation cover 2 is closed, and the heating component 3 is started to heat the inside of the curing chamber 1 separately, so that the temperature in the curing chamber 1 rises and reaches the temperature required for the curing of the unfired ceramsite, i.e., heating curing. When there is insufficient sunlight, the heating component 3 is started to perform auxiliary heating on the inside of the curing chamber 1, so that the temperature in the curing chamber 1 rises and reaches the temperature required for the curing of the unfired ceramsite, i.e., composite curing. The heat preservation cover 2 is closed or partially closed according to conditions such as sunlight illumination, external ambient temperature, and temperature in the curing chamber to control the influx of heat radiated by sunlight or reduce heat loss inside the curing chamber. In addition, the interior of the curing bin 1 is relatively closed, and the unfired ceramsite itself contains moisture, and the humidity required for the curing environment is formed by the volatilization of the moisture contained in the unfired ceramsite itself. This solution uses a light-transmitting curing bin, a heating component, and a heat-insulating cover to comprehensively utilize sunlight radiation and heating by the heating component to achieve a combination of sunlight curing and heating curing, so that the temperature and humidity in the relatively closed curing area always meet the optimal curing conditions for the unfired ceramsite, so that the curing time of the unfired ceramsite is short, the finished product quality is high, and the production energy consumption is low; thereby solving the problem of long curing cycle and high production cost of unfired ceramsite.

[0038] In order to further illustrate that this solution can save production costs in the maintenance process, an exemplary calculation is performed below.

[0039] The curing temperature of unfired ceramsite is 35℃~70℃, and the curing time is 5h. From April to October every year, there are 8 hours of sunshine curing conditions during the day. The specific heat capacity of unfired ceramsite is 1200J / (kg℃), the average temperature before curing is 25℃, the curing temperature is 50℃, the curing time is 5h, the energy efficiency coefficient of electric heating is 80%, the comprehensive thermal conductivity of the curing device is 0.06, the average thickness of unfired ceramsite is 0.01m, and the heat dissipation area of ​​​​each ton of unfired ceramsite is 8㎡. Electric heating curing method:

[0040] The power consumption per ton is 1200×1000×(50-25) / 360000 / 0.8=10.4kwh,

[0041] Heat loss after 5 hours of curing: 0.06×8×(50-25)×5 / 0.01 / 1000=6kwh.

[0042] Therefore, the use of electric heating to maintain unfired expanded clay requires 16.4 kWh of electricity per ton. Based on the comprehensive electricity price of 0.7 yuan per kilowatt-hour, the cost of each ton of unfired expanded clay can be saved during the period of sunlight maintenance: 16.4×0.7=11.48 yuan.

[0043] like Figure 4 As shown, specifically, it also includes a belt conveyor 5 longitudinally arranged in the curing bin 1, and the belt conveyor 5 includes concave rollers 51 and a conveyor belt 52 wound thereon, and the concave rollers 51 are arranged at intervals along the longitudinal direction.

[0044] In this solution, the belt conveyor 5 is installed on the supporting bottom plate 4, and is used to send the unburned ceramsite into and out of the curing area 11. In this solution, the curing device can be connected to the existing unburned ceramsite production line through the belt conveyor 5. The unburned ceramsite produced by the upstream granulation equipment continuously falls into the conveyor belt 52, slowly passes through the curing bin 1 to complete the curing, and finally is directly output to the downstream process, so as to realize the streamlined and continuous production of unburned ceramsite, reduce manual labor, and improve the production efficiency and production scale of unburned ceramsite. In addition, the conveyor belt 52 is used to transport the unburned ceramsite. The concave roller 51 is used to support the conveyor belt 52 and the unburned ceramsite. The unburned ceramsite is stacked on the conveyor belt 52, and the concave roller 51 can increase the number of unburned ceramsites stacked under the single-sided area of ​​the conveyor belt 52, thereby increasing the number of unburned ceramsites cured per unit time, and improving the production efficiency of the unburned ceramsite.

[0045] This solution combines the belt conveyor 5 with the curing bin 1 so that the unburned ceramsite can be cured while being transported. The curing device can be connected to the existing unburned ceramsite production line to achieve full-process streamlined production of the unburned ceramsite, thereby improving the production efficiency and production scale of the unburned ceramsite.

[0046] In some embodiments, the belt conveyor 5 further includes a speed regulating motor and a transmission roller. The conveyor belt 52 is wound around the transmission roller and the concave roller 51. The speed regulating motor drives the transmission roller to rotate, thereby driving the conveyor belt 52 to move. The speed regulating motor adjusts the movement speed of the conveyor belt 52 to adjust the residence time of the unburned ceramsite in the curing bin 1, that is, the curing time. The concave roller 51 can be a V-shaped roller. The conveyor belt 52 can be a belt, a mesh belt, or a chain belt. The speed regulating motor can be a variable frequency motor.

[0047] In other embodiments, it also includes a roller conveyor longitudinally arranged in the curing bin, and the upstream unburned expanded clay first falls into a transfer basket, and the roller conveyor sends the transfer basket into a curing area. After the curing time is over, the transfer basket is sent out of the curing area, and the unburned expanded clay loaded in the transfer basket immediately enters the downstream process.

[0048] like Figure 4 As shown, further, a baffle plate 12 is provided inside the curing bin 1, and the baffle plates 12 are respectively located on both sides of the conveyor belt 52, and the baffle plates 12 and the conveyor belt 52 enclose the curing area 11. The unfired ceramsite is stacked on the conveyor belt 52, and the baffle plates 12 on both sides can increase the stacking height of the unfired ceramsite, increase the stacking quantity of the unfired ceramsite under the single surface area of ​​the conveyor belt 52, thereby miniaturizing the equipment and improving the production efficiency of the unfired ceramsite.

[0049] In some embodiments, the height of the baffle plate 12 is 10 to 50 cm, the material is a metal plate or a light-transmitting plate with good thermal conductivity, and the thickness is 3 to 10 mm. The baffle plate 12 is installed on the supporting base plate 4 or the belt conveyor 5.

[0050] like Figure 4 As shown, specifically, the curing bin 1 includes a support frame 13 and a light-transmitting plate 14 laid on the support frame 13; the middle upper part of the support frame 13 is raised, and the light-transmitting plate 14 is laid to form a top surface of the curing bin 1 with a high middle and low edges. During the curing process of the unfired ceramsite, condensed water will be generated on the wall surface of the curing bin 1. The raised design can make the condensed water on the top surface of the curing bin 1 flow along the light-transmitting plate 14 to the side wall of the curing bin 1, avoiding dripping on the unfired ceramsite in the curing area 11.

[0051] In some embodiments, the support frame 13 is a rectangular parallelepiped frame of steel structure, which is fixed on the support base plate 4. The light-transmitting plates 14 are installed on multiple surfaces of the support frame 13 by fasteners to form multiple light-transmitting walls of the curing chamber 1.

[0052] In other implementations, the curing chamber is hemispherical and is formed by directly splicing a plurality of curved light-transmitting panels in sequence.

[0053] Furthermore, a feed port 15 and a discharge port 16 are respectively provided at both ends of the curing bin 1, and a downwardly inclined chute 17 is provided on the feed port 15 or the discharge port 16. The chute 17 is used to guide the unburned ceramsite to roll into or out of the curing bin 1 by its own gravity.

[0054] In some embodiments, the upstream unfired expanded clay falls from the chute 17 at the feed port 15 onto the conveyor belt 52, is sent to the curing bin 1 by the conveyor belt 52 to complete the curing, and leaves from the chute 17 at the discharge port 16 and falls into the downstream process.

[0055] Specifically, the thermal insulation cover 2 includes a retaining frame 21 and a first thermal insulation material 22 covering the retaining frame 21; the retaining frame 21 is provided with multiple groups and has a gradually varying size, and the retaining frames 21 can be nested and telescoped with each other, and the first thermal insulation material 22 is movably covered on the outer periphery of the curing chamber 1.

[0056] Furthermore, the first thermal insulation material 22 is made of at least one of polystyrene, foamed polyurethane, foamed concrete, and EPS particle concrete, or the first thermal insulation material 22 is a vacuum insulation board.

[0057] In some embodiments, the retainer 21 is an arched steel frame; the bottom fulcrum of the retainer 21 is located on both sides of the curing bin 1 and is installed on the supporting bottom plate 4; the retainer 21 can be extended and retracted from one end to the other end of the curing bin 1 in the longitudinal direction. The first insulation material 22 is an insulation board, which covers the retainer 21. When the retainer 21 is retracted, the insulation cover 2 is opened and the curing bin 1 is exposed; when the retainer 21 is extended, the insulation cover 2 is closed to keep the curing bin 1 warm.

[0058] In other embodiments, the retainer is an arched steel frame, and the first heat-insulating material is a heat-insulating cloth covering the retainer. The retainer is folded from the top to both sides of the curing bin in the horizontal direction, and the heat-insulating cover is opened; the retainer is unfolded from both sides to the top of the curing bin in the horizontal direction, and the heat-insulating cover is closed.

[0059] In other implementations, the retainer is an arc steel frame, and the first insulation material is an insulation cloth covering the retainer. The retainer is folded along the circumference of the hemispherical curing bin, and the insulation cover is opened; the retainer is unfolded along the circumference of the hemispherical curing bin, and the insulation cover is closed.

[0060] In other embodiments, the retainer is a single arched steel frame, the first insulation material is an insulation board or insulation cloth, covering the retainer. The retainer as a whole moves longitudinally from one end to the other end of the curing bin, and the first insulation material is movably covered on the outer periphery of the curing bin.

[0061] like Figure 5 As shown, further, a pulley 23 is provided at the lower end of the retaining frame 21, and a slide rail 41 is provided on the supporting bottom plate 4; the pulley 23 rolls on the slide rail 41 to guide the retaining frame 21 to be nested and telescopic.

[0062] Optionally, the retaining frame 21 is further provided with a driving motor for driving the pulley 23 to roll, so as to realize automatic control of opening and closing of the heat preservation cover 2.

[0063] Specifically, the heating component 3 includes an electric heating wire 31, which covers the height range of the curing area 11, and a plurality of groups of the electric heating wires 31 are arranged at intervals along the longitudinal direction on the back of the baffle plate 12. The back of the baffle plate 12 is the side of the baffle plate 12 that does not contact the unfired ceramsite. The position height of the electric heating wire 31 is consistent with or slightly lower than the height of the unfired ceramsite stacking.

[0064] In other implementations, the heating component includes infrared heating lamps distributed on the top of the curing bin, or steam heat exchangers and thermal oil heat exchangers arranged at intervals between the baffle plate and the side wall of the curing bin.

[0065] Specifically, the support bottom plate 4 is provided with a guide groove 42, and the guide groove 42 is arranged along the bottom edge of the curing bin 1. The guide groove 42 is used to collect and drain the condensed water flowing down the side wall of the curing bin 1.

[0066] Specifically, the bottom of the supporting bottom plate 4 is wrapped with a second insulation material 43. The second insulation material 43 and the first insulation material 22 of the insulation cover 2 form an all-round insulation layer on the periphery of the curing bin 1, enhancing the insulation effect of the curing bin 1 and improving the heat utilization efficiency.

[0067] Specifically, it also includes a temperature control component or a humidity control component arranged in the curing chamber 1; the temperature control component includes a temperature sensor and a fan 61; the humidity control component includes a humidity sensor and a humidifier 62.

[0068] In some embodiments, the fan exchanger 61 is installed on the feed port 15 or the discharge port 16 of the curing chamber 1. During the sunlight curing process, when the temperature in the curing chamber 1 exceeds the specified standard, the fan exchanger 61 automatically opens to exchange the air in the curing chamber 1 with the outside air to reduce the temperature in the curing chamber 1. The fan exchanger 61 is also installed on the top of the curing chamber 1 to achieve gas flow and exchange in the curing chamber 1 to ensure uniform temperature in the curing chamber 1. The humidifier 62 is installed on the top surface of the curing chamber 1 to humidify the air in the curing chamber 1 to ensure that the humidity in the curing chamber 1 meets the specified standard.

[0069] In some embodiments, the method for using the above maintenance device includes the following steps:

[0070] S1. Place the unburned ceramsite into the curing area 11 of the curing bin 1;

[0071] S2. When there is sufficient sunlight, the heat preservation cover 2 is opened, and the temperature in the curing chamber 1 is raised by the heat of sunlight radiation, and sunlight curing is performed; when there is insufficient sunlight, the temperature in the curing chamber 1 is raised by auxiliary heating through the heating component 3, and composite curing is performed; when there is no sunlight, the heat preservation cover 2 is closed, and the temperature in the curing chamber 1 is raised by heating through the heating component 3 alone, and heating curing is performed;

[0072] S3 control the temperature and humidity in the curing bin 1 to achieve the temperature and humidity required for unburned ceramsite curing;

[0073] S4. After the curing time is over, the unburned ceramsite is taken out from the curing area 11 of the curing bin 1.

[0074] Step S1 specifically includes: the unburned ceramsite is transferred from the upstream process to the conveying component 5 , and the conveying component 5 continuously delivers the unburned ceramsite from one end of the curing area 11 of the curing bin 1 .

[0075] In step S2, the unburned expanded clay is cured while continuously passing through the curing area 11. The closing conditions of the heat preservation cover 2 include: when there is sufficient sunlight and the temperature in the curing bin 1 is high, the heat preservation cover 2 is closed or partially closed to reduce the sunlight radiation to the curing bin 1. When there is sufficient sunlight and the external ambient temperature is low, the heat preservation cover 2 is partially closed to keep the curing bin 1 warm. When there is insufficient sunlight and the heating component 3 is started, the heat preservation cover 2 is closed or partially closed to keep the curing bin 1 warm. When there is no sunlight and the heating component 3 is started, the heat preservation cover 2 is closed to keep the curing bin 1 warm.

[0076] Step S3 specifically includes: when the temperature sensor detects that the temperature of the curing area 11 is too high, turning on the fan 61 to exchange the air in the curing chamber 1 with the outside air; when the humidity sensor detects that the humidity in the curing area 11 is too low, turning on the humidifier 62 to humidify the air in the curing chamber.

[0077] Step S4 specifically includes: the conveying component 5 continuously delivers the unburned ceramsite from the other end of the curing area 11 of the curing bin 1, and the unburned ceramsite is transferred from the conveying component 5 to the downstream process.

[0078] Specifically, the method further includes step S5: taking out a small amount of unfired ceramsite from the curing bin 1 to conduct a cylinder pressure strength test.

[0079] In the description of this solution, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this solution, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] In this solution, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this solution can be understood according to specific circumstances.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present solution. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0082] Although embodiments of the present solution have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present solution. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present solution.

Claims

1. A curing device for unfired ceramsite, placed in an open air environment, characterized in that: include: The curing bin (1) has a light-transmitting top and surroundings and is provided with a curing area (11) for stacking the unfired ceramsite; A heat-insulating cover (2) which is movably arranged on the outer periphery of the curing bin (1); A heating component (3) is arranged inside the curing chamber (1); A supporting bottom plate (4) supports the curing bin (1), the heat-insulating cover (2) and the heating component (3).

2. The curing device for unfired ceramsite according to claim 1, characterized in that: It also includes a belt conveyor (5) longitudinally arranged in the curing bin (1), wherein the belt conveyor (5) includes concave rollers (51) and a conveyor belt (52) wound thereon, and the concave rollers (51) are arranged at intervals along the longitudinal direction.

3. The curing device for unfired ceramsite according to claim 2, characterized in that: The curing bin (1) is provided with a material baffle plate (12) inside, and the material baffle plate (12) is respectively located on both sides of the conveyor belt (52), and the material baffle plate (12) and the conveyor belt (52) enclose the curing area (11).

4. The curing device for unfired ceramsite according to claim 1, characterized in that: The curing bin (1) comprises a support frame (13) and a light-transmitting plate (14) laid on the support frame (13); the middle upper part of the support frame (13) is raised, and the light-transmitting plate (14) is laid to form a top surface of the curing bin (1) with a high middle and low edges.

5. The curing device for unfired ceramsite according to claim 1, characterized in that: A feed port (15) and a discharge port (16) are respectively provided at both ends of the curing bin (1), and a downwardly inclined chute (17) is provided on the feed port (15) or the discharge port (16).

6. The curing device for unfired ceramsite according to claim 1, characterized in that: The heat-insulating cover (2) comprises a retaining frame (21) and a first heat-insulating material (22) covering the retaining frame (21); the retaining frame (21) is provided with a plurality of groups and has a gradually varying size; the retaining frames (21) can be mutually nested and telescopic; and the first heat-insulating material (22) is movably covered on the outer periphery of the curing bin (1).

7. The curing device for unfired ceramsite according to claim 6, characterized in that: A pulley (23) is provided at the lower end of the retaining frame (21), and a slide rail (41) is provided on the supporting bottom plate (4); the pulley (23) rolls on the slide rail (41) to guide the retaining frame (21) to nest and telescope.

8. The curing device for unfired ceramsite according to claim 3, characterized in that: The heating component (3) comprises an electric heating wire (31), the electric heating wire (31) covers the height range of the curing area (11), and a plurality of groups of the electric heating wires (31) are arranged at intervals along the longitudinal direction on the back side of the baffle plate (12).

9. The curing device for unfired ceramsite according to claim 4, characterized in that: The supporting bottom plate (4) is provided with a guide groove (42), and the guide groove (42) is arranged along the bottom edge of the curing bin (1).

10. A curing device for unfired ceramsite according to any one of claims 1 to 9, characterized in that: The curing device further comprises a temperature control component or a humidity control component arranged in the curing chamber (1); the temperature control component comprises a temperature sensor and a fan (61); and the humidity control component comprises a humidity sensor and a humidifier (62).

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