Distributed high-efficiency energy-saving and environmentally friendly industrial kilns

Abstract

The present application provides a distributed, efficient, energy-saving and environmentally friendly industrial kiln, comprising the following components: a preheating bin arranged in a plurality of independent units, comprising a preheating bin body and a preheating bin door that can be opened and closed movably; a firing kiln arranged in a plurality of independent units and spaced apart from the preheating bin, comprising a kiln body, a kiln cover that can be opened and closed movably on the top of the kiln body, and an intelligent electric flame heating device; a cooling bin arranged in a plurality of independent units and spaced apart from the preheating bin and the firing kiln, comprising a cooling bin body and a cooling bin cover that can be opened and closed movably on the top of the cooling bin body; a hoisting device is arranged above the loading area, the preheating bin, the firing kiln, the cooling bin and the unloading area, and can be moved and used to hoist out or load ceramic products; an intelligent ventilation system is respectively connected to the firing kiln, the preheating bin and the cooling bin. The control system is respectively connected to the above components to realize intelligent control. The distributed, efficient, energy-saving and environmentally friendly industrial kiln provided in the present application has the advantages of safety, energy saving and environmental protection.

Description

Technical Field

[0001] The present application belongs to the technical field of industrial kilns, and more specifically, to a distributed, efficient, energy-saving and environmentally friendly industrial kiln. Background Art

[0002] In the ceramic industry, the common industrial kilns are mainly divided into tunnel kilns and roller kilns. In these two types of industrial kilns, the kiln car loaded with ceramic products to be fired will pass through the loading area, preheating bin, firing area, cooling area, unloading area, and then return to the loading area again, and repeat this cycle to complete the entire firing process. The main difference between these two types of industrial kilns is that the kiln car of the roller kiln moves forward by the rotation of the roller, while the kiln car of the tunnel kiln has its own wheels and moves forward by dragging. However, in the process of the kiln car moving forward, both the tunnel kiln and the roller kiln may have a kiln car collapse accident, especially in multi-layer kilns, and any kiln car in any area will cause the entire production line to stop production. Once the production is stopped, the entire tunnel needs to be slowly cooled down before the fault is cleared, and the entire tunnel needs to be slowly heated up after the fault is cleared. Therefore, the entire process of cleaning and restarting the production line will consume huge time, manpower, material resources and financial resources. Therefore, how to avoid the shutdown of the entire production line due to a kiln car collapse accident is a difficult problem that all ceramic manufacturers must face.

[0003] In addition, the common industrial kilns currently have the reality of large investment, large carbon emissions, large land use, but relatively small production capacity. Specifically, first, to build a new ordinary ceramic production line, only the equipment and factory buildings need to invest at least 50 million, the investment scale is large but the production capacity is small; second, to build a new ordinary ceramic production line, it takes about 50 acres of land. Such a large-scale land use is unsustainable when land is becoming more and more expensive; third, industrial kilns usually use gas when firing ceramic products, such as but not limited to natural gas, coal-to-gas, heavy oil gas, etc. This heating method not only consumes a lot of gas resources, but also produces a lot of carbon dioxide emissions. Especially under the current environmental protection requirements of carbon neutrality, ordinary ceramic production lines will be strictly restricted, and old production lines with unqualified emissions will also be gradually shut down.

[0004] Therefore, how to design an industrial kiln that is environmentally friendly and energy-saving, occupies a small area, has high output and good safety has become an urgent problem to be solved in the ceramic industry. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a distributed, high-efficiency, energy-saving and environmentally friendly industrial kiln to solve the technical problems of poor safety, low efficiency and environmental pollution of industrial kilns in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by this application is: to provide a distributed high-efficiency energy-saving and environmentally friendly industrial kiln for firing ceramic products, the distributed high-efficiency energy-saving and environmentally friendly industrial kiln comprising:

[0007] If there are preheating bins, each preheating bin is set up as an independent unit, and the preheating bin includes a preheating bin body and a preheating bin door arranged at the bin opening of the preheating bin body, and the preheating bin door can be opened and closed to open or close the preheating bin body;

[0008] A plurality of firing kilns, each of which is independently arranged and spaced apart from the preheating chamber; the firing kiln comprises a kiln body, a kiln cover covering the top of the kiln body and being movable, and an intelligent electric flame heating device arranged on the side wall of the kiln body;

[0009] A plurality of cooling bins, each of which is independently provided and spaced apart from the preheating bin and the firing kiln; the cooling bin comprises a cooling bin body and a cooling bin cover provided at the bin opening of the cooling bin body, and the cooling bin cover can be movably opened and closed to open or close the cooling bin body;

[0010] A lifting device is arranged above the preheating bin, the firing kiln and the cooling bin, and the lifting device is movable and used to lift or load the loading plate with the ceramic products placed thereon from or into the preheating bin, the firing kiln and the cooling bin respectively;

[0011] Intelligent ventilation system, which is connected to the firing kiln, preheating chamber and cooling chamber respectively; and,

[0012] Control system, the control system is respectively connected with the preheating bin, firing kiln, cooling bin, hoisting equipment and intelligent ventilation system.

[0013] Optionally, the preheating chamber and / or the firing kiln and / or the cooling chamber are arranged below the ground.

[0014] Optionally, the preheating bin body has a preheating tunnel, the preheating tunnel has a tunnel inlet and a tunnel outlet, both the tunnel inlet and the tunnel outlet are provided with preheating bin doors, the tunnel outlet is arranged adjacent to the firing kiln, and the cooling bin is arranged adjacent to the firing kiln.

[0015] Optionally, the preheating bin is U-shaped, and a U-shaped preheating tunnel is formed inside the preheating bin;

[0016] The preheating bin also includes a circular track, which includes a first track segment and a second track segment. The first track segment is U-shaped and built into the preheating tunnel, and the second track segment is located outside the preheating bin body. The first track segment is gradually inclined downward along the track direction from the tunnel entrance to the tunnel exit.

[0017] Optionally, the bottom of the preheating bin, the side walls of the preheating bin and the preheating bin cover are all made of thermal insulation material;

[0018] The preheating bin body comprises two parallel sections which are spaced apart from each other and are parallel to each other, and an arc section connecting the two parallel sections. The firing kiln and the cooling bin are located in the area between the two parallel sections.

[0019] Optionally, the preheating bin further includes an anti-dumping kiln car; the anti-dumping kiln car includes a car plate, wheels and a hook;

[0020] The circular track includes two spaced parallel rails, the vehicle plate has two opposite vehicle plate edges that exceed the outer side of the rails; the wheels are installed on the bottom of the vehicle plate and can slide on the rails, and a plurality of hooks are arranged on the two vehicle plate edges, and the hooks have curved hook parts facing the outer side of the rails.

[0021] Optionally, the industrial kiln further comprises a loading area and an unloading area, and the loading area and the unloading area are independently arranged relative to the preheating bin, the firing kiln and the cooling bin;

[0022] The loading area is located near the tunnel entrance, and the unloading area is located near the tunnel exit.

[0023] Optionally, the industrial kiln also includes an intelligent robotic arm, and the intelligent robotic arm is arranged adjacent to the preheating chamber and the loading area.

[0024] Optionally, the bottom of the kiln body, the side walls of the kiln body and the kiln cover are all made of refractory materials, the bottom of the kiln body, the side walls of the kiln body and the kiln cover enclose a heating chamber, and the ceramic products are placed on the loading plate and built into the heating chamber;

[0025] The intelligent electric flame heating equipment comprises a plurality of groups of electric flame guns, one end of each group of electric flame guns is connected to the side wall of the kiln body, and the other end of the electric flame gun extends into the heating chamber.

[0026] Optionally, the intelligent electric flame heating device further comprises a moving device mounted on the side wall of the kiln body, and one end of the electric flame gun is mounted on the side wall of the kiln body through the moving device;

[0027] The moving device includes a first driving mechanism and a sliding member. A sliding mounting hole is provided on the side wall of the kiln body. The sliding member is installed at the sliding mounting hole and is slidably connected to the side wall of the kiln body. The sliding member always covers the sliding mounting hole during the sliding process.

[0028] One end of the electric flame gun is connected to the sliding member; the first driving mechanism is arranged on the outer side of the kiln body and is used to drive the sliding member to drive the electric flame gun to move and rotate.

[0029] Optionally, the electric flame gun is arranged in a Feng shape or F shape, including a main rod and multiple branch rods; the main rod is connected to the sliding member, the branch rods are radially extended from the main rod along the cross-section of the main rod, and the multiple branch rods are arranged at intervals along the axial direction of the main rod; a flame nozzle is opened at the free end of the branch rod away from the main rod.

[0030] Optionally, the kiln cover includes a refractory layer located at an inner layer and a metal plate stacked on the outer side of the refractory layer;

[0031] The firing kiln also includes a second driving mechanism and a locking device; the second driving mechanism is installed on the outer surface of the kiln body and connected to the metal plate, and is used to drive the kiln cover to open or close; the locking device is arranged on the metal plate, and is used to lock or unlock the kiln cover.

[0032] Optionally, the intelligent ventilation system includes an air duct group, multiple groups of fans, multiple ventilation communication devices and multiple thermometers; the air inlet and air outlet of the preheating bin, the air inlet and air outlet of the firing kiln, and the air inlet and air outlet of the cooling bin are all provided with a ventilation communication device;

[0033] The air duct group includes a plurality of low-temperature cold air ducts, a plurality of low-temperature hot air ducts, a plurality of medium-temperature hot air ducts and a plurality of high-temperature hot air ducts; a thermometer is provided in each of the high-temperature hot air duct and the medium-temperature hot air duct; a fan is provided in each of the high-temperature hot air duct, the medium-temperature hot air duct, the low-temperature hot air duct and the low-temperature cold air duct;

[0034] The air inlet of the firing kiln is connected to a medium-temperature hot air channel and a high-temperature hot air channel respectively through a ventilation communication device; the air outlet of the firing kiln is connected to a high-temperature hot air channel through a ventilation communication device;

[0035] The air inlet of the preheating bin is connected to the air outlet of the firing kiln through a ventilation communication device and a high-temperature hot air channel, and the air outlet of the preheating bin is connected to the air inlet of the firing kiln through a medium-temperature hot air channel;

[0036] The air inlet of the cooling bin is connected to a medium-temperature hot air channel, a low-temperature hot air channel and a low-temperature cold air channel respectively through a ventilation connecting device; the air outlet of the cooling bin is connected to a high-temperature hot air channel, a medium-temperature hot air channel and a low-temperature hot air channel respectively through a ventilation connecting device, wherein the high-temperature hot air channel and the medium-temperature hot air channel are both connected to the air outlet of the cooling bin.

[0037] Optionally, the industrial kiln also includes an air drying tower, the air inlet of the air drying tower is connected to the air outlet of the preheating bin through a medium-temperature hot air channel; the air outlet of the air drying tower is connected to the air inlet of the cooling bin through a low-temperature hot air channel.

[0038] Optionally, the bottom of the cooling bin body, the side walls of the cooling bin body and the cooling bin cover are all made of thermal insulation material; the bottom of the cooling bin body, the side walls of the cooling bin body and the cooling bin cover enclose a cooling cavity.

[0039] Optionally, a first positioning portion is provided at the bottom of the loading plate, and a second positioning portion adapted to be positioned and connected with the first positioning portion is provided at the bottom of the kiln body and the bottom of the cooling bin body;

[0040] The upper surface of the loading plate is also provided with a third positioning portion, and a plurality of loading plates can be stacked.

[0041] Optionally, the industrial kiln further comprises a heat-insulating hoisting box, which is made of a heat-insulating material, is connected to the loading plate, and covers the ceramic products placed on the loading plate.

[0042] The beneficial effects of the distributed high-efficiency energy-saving and environmentally friendly industrial kiln provided by the present application are: compared with the currently common industrial kilns, the distributed high-efficiency energy-saving and environmentally friendly industrial kiln has the following advantages:

[0043] First, since the preheating bin, firing kiln and cooling bin are completely independent monomers and are distributed in intervals, these individual production equipment can run in parallel without interfering with each other, so production personnel can arbitrarily expand or stop production of a certain bin according to production capacity requirements without affecting the normal production of the entire production line. For example, when a certain production equipment in the preheating bin, firing kiln and cooling bin is a production capacity bottleneck, the number of this production equipment can be increased independently, so that the production capacity can be significantly improved, and even the maximum release of production capacity can be achieved; of course, when a certain production equipment fails, it can also be directly stopped and another similar production equipment can be directly used without affecting it. In this way, the situation where the entire production line is stopped due to the collapse of the kiln car can be completely avoided, greatly improving the production safety of the entire production line. At the same time, using the technical solution of this application, flexible production capacity can be achieved between the minimum capacity and the maximum capacity.

[0044] Second, in the firing kiln, ceramic products are fired using an intelligent electric flame heating device installed on the inner wall of the firing kiln. The intelligent electric flame heating device sprays electric flames, and the electric flame heating uses electrical energy, such as but not limited to photovoltaic electricity, wind power, hydropower, nuclear power, biomass electricity and other renewable energy sources, thereby achieving the goal of zero carbon emissions during production, which has positive environmental protection significance.

[0045] Third, when using the intelligent electric flame heating equipment, the kiln cover of the firing kiln is closed, that is, the intelligent electric flame heating equipment is in a closed kiln body during heating, which can greatly reduce the loss of heat energy; of course, the preheating bin can also be sealed by the preheating bin cover, and the cooling bin can also be sealed by the cooling bin cover, which is also conducive to reducing energy loss; in addition, since the intelligent ventilation system is connected to the firing kiln, the preheating bin and the cooling bin respectively, the heat energy of the firing kiln during the cooling process can also be reused through the intelligent ventilation system for preheating of the preheating bin and air drying of the air drying tower. In other words, the opening and closing of the firing kiln, the preheating bin and the cooling bin and the connectivity of the intelligent ventilation system can make this distributed high-efficiency energy-saving and environmentally friendly industrial kiln very energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0047] Figure 1 A plan distribution diagram of a distributed high-efficiency energy-saving and environmentally friendly industrial kiln provided in an embodiment of the present application;

[0048] Figure 2 A schematic diagram of the distribution of a distributed, high-efficiency, energy-saving and environmentally friendly intelligent ventilation system for an industrial furnace provided in an embodiment of the present application;

[0049] Figure 3 A schematic diagram of the structure of an intelligent electric flame heating device provided in an embodiment of the present application;

[0050] Figure 4 A schematic diagram of the structure of the intelligent electric flame heating device provided in an embodiment of the present application from another angle;

[0051] Figure 5 A connection diagram of the intelligent ventilation system provided in an embodiment of the present application;

[0052] Figure 6 A planar distribution diagram of the preheating chamber provided in an embodiment of the present application;

[0053] Figure 7 A schematic cross-sectional view of a circular track of a preheating chamber provided in an embodiment of the present application;

[0054] Figure 8 A schematic diagram of a portion of the structure of a loading plate provided in an embodiment of the present application;

[0055] Fig. 9 A schematic diagram of the structure of an anti-dumping kiln car provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present application.

[0057] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0058] In order to illustrate the technical solution provided by the present application, a detailed description is given below in conjunction with specific drawings and embodiments.

[0059] The embodiment of the present application provides a distributed, high-efficiency, energy-saving and environmentally friendly industrial kiln.

[0060] See also Figure 1 and Figure 2In one embodiment, the distributed high-efficiency, energy-saving and environmentally friendly industrial kiln includes a plurality of preheating bins 100, a plurality of firing kilns 200, a plurality of cooling bins 300, a hoisting device (not shown), an intelligent ventilation system 900 and a control system (not shown). Each preheating bin 100 is a completely independent single-body setting, and the preheating bin 100 specifically includes a preheating bin body (not shown) and a preheating bin door (not shown) disposed at the bin mouth of the preheating bin body, and the preheating bin door can be movably opened and closed to open or close the preheating bin body. Each firing kiln 200 is also a completely independent single-body setting, and is spaced apart from the preheating bin 100; the firing kiln 200 specifically includes a kiln body (not shown), a kiln cover (not shown) and an intelligent electric flame heating device 210, the kiln cover is disposed at the top of the kiln body, and can be movably opened and closed to open or close the kiln body, and the intelligent electric flame heating device 210 is disposed on the side wall of the kiln body, and is used to spray electric flames to achieve the firing of ceramic products placed in the kiln body. Each cooling bin 300 is also arranged as a completely independent single body, and is spaced apart from the firing kiln 200 and the preheating bin 100; the cooling bin 300 specifically includes a cooling bin body (not shown) and a cooling bin cover provided at the bin opening of the cooling bin body, and the cooling bin cover can be movably opened and closed to open or close the cooling bin body. The hoisting equipment is arranged above the preheating bin 100, the firing kiln 200 and the cooling bin 300, for example but not limited to being arranged on the beam of the factory building, and the hoisting equipment can be moved and used to hoist or load the loading plate 700 with ceramic products placed thereon from the preheating bin 100, the firing kiln 200 and the cooling bin 300 respectively. The intelligent ventilation system 900 is respectively connected to the firing kiln 200, the preheating bin 100 and the cooling bin 300; the control system is respectively electrically connected to the preheating bin 100, the firing kiln 200, the cooling bin 300, the hoisting equipment and the intelligent ventilation system 900 to realize intelligent control of the above-mentioned components.

[0061] Here, the control system can be regarded as a scheduling system for automated production management, which can be used for status collection of each production equipment, release and reception of production scheduling instructions of production equipment, time management of the current production process of production equipment, management of instruction execution steps of the current process of production equipment, and coordination between instruction execution steps of each production equipment, so as to realize planning of production instruction execution steps and optimization of optimal production instruction execution steps according to different conditions, such as maximum production capacity, maximum energy saving or minimum production capacity. Specifically, the control system includes an intelligent control room 410 with a host and various information collection and transmission components, thereby forming a preheating warehouse fault management subsystem, a firing kiln automation management subsystem, a cooling warehouse automation management subsystem, an intelligent ventilation management subsystem, a hoisting automation coordination management subsystem, etc., wherein the firing kiln automation management subsystem includes a heating management function for the intelligent electric flame. Of course, this industrial kiln also includes a loading area 510 and an unloading area 520, and accordingly, the control system also includes an automated loading management subsystem for the loading area and an automated unloading management subsystem for the unloading area. In this way, through the intelligent scheduling of the control system, the production efficiency of this distributed high-efficiency, energy-saving and environmentally friendly industrial kiln can be greatly improved, thereby expanding output and reducing the cost of ceramic products.

[0062] Based on this structural design, in this application, compared with the currently common industrial kilns, this distributed high-efficiency energy-saving and environmentally friendly industrial kiln has the following advantages:

[0063] First, since the preheating bin 100, the firing kiln 200 and the cooling bin 300 are completely independent monomers and are distributed in intervals, these individual production equipment can run in parallel without interfering with each other, so the production personnel can arbitrarily expand or stop production of a certain bin according to the demand for production capacity without affecting the normal production of the entire production line. For example, when a certain production equipment in the preheating bin 100, the firing kiln 200 and the cooling bin 300 is a production capacity bottleneck, the number of the production equipment can be increased independently, so that the production capacity can be significantly improved, and even the maximum release of production capacity can be achieved; of course, when a certain production equipment fails, it can also be directly stopped and another similar production equipment can be directly used without affecting it, so that the situation of stopping the entire production line due to the collapse of the kiln car can be completely avoided, and the production safety of the entire production line can be greatly improved. At the same time, using the technical solution of the present application, flexible production capacity can be achieved between the minimum capacity and the maximum capacity.

[0064] Second, in the firing kiln 200, ceramic products are fired using an intelligent electric flame heating device 210 disposed on the inner wall of the firing kiln 200. The intelligent electric flame heating device 210 sprays an electric flame, and the electric flame heating uses electrical energy, such as but not limited to photovoltaic electricity, wind power, hydropower, nuclear power, biomass electricity and other renewable energy sources, thereby achieving the goal of zero carbon emissions during production, which has positive environmental protection significance.

[0065] Third, when the intelligent electric flame heating device 210 is used, the kiln cover of the firing kiln 200 is closed, that is, the intelligent electric flame heating device 210 is in a closed kiln body during heating, thereby greatly reducing the loss of heat energy; of course, the preheating chamber 100 can also be sealed by the preheating chamber cover, and the cooling chamber 300 can also be sealed by the cooling chamber cover, which is also conducive to reducing energy loss; in addition, since the intelligent ventilation system 900 is respectively connected to the firing kiln 200, the preheating chamber 100 and the cooling chamber 300, the heat energy of the firing kiln 200 during the cooling process can also be reused through the intelligent ventilation system 900 for preheating of the preheating chamber 100 and air drying of the air drying tower 950. In other words, the opening and closing of the firing kiln 200, the preheating chamber 100 and the cooling chamber 300 and the connection of the intelligent ventilation system 900 can make this distributed high-efficiency energy-saving and environmentally friendly industrial kiln very energy-saving.

[0066] It should be noted that this distributed high-efficiency energy-saving and environmentally friendly industrial kiln is mainly used for the firing of ceramic products, and is particularly suitable for the manufacture of foamed ceramics. Under the premise of advocating green energy-saving buildings and safe and environmentally friendly construction today, foamed ceramics, as a new type of inorganic building material, have the advantages of light weight, non-combustibility, heat preservation, heat insulation, waterproof and moisture-proof, etc., which can better meet the gradually increasing requirements for the thermal insulation performance of real estate building materials, and thus are increasingly valued by people. Usually, the partition board made of foamed ceramics should be a large board with thick thickness but high strength and light weight. For example, referring to the wall standards of general buildings, the thickness range of the partition board is generally 10 to 15 cm, and the thickness of the partition board used in the northern region should be greater than 20 cm, and its compressive strength should reach more than 6 MPa. Due to these higher performance standards, if the common industrial kilns currently used to fire foamed ceramics will lead to problems such as long firing time, high energy consumption, high carbon emissions, and low production capacity, which will lead to high costs and higher market prices for foamed ceramics, which is not conducive to the market expansion of this environmentally friendly product. Specifically, in the comprehensive cost of foamed ceramics, about 1 / 3 is energy cost, and about 1 / 3 is equipment depreciation and land use costs. In the present application, the distributed high-efficiency energy-saving and environmentally friendly industrial kiln can increase production capacity by at least 3 times or more with the same or even less investment and less land use, and also has a significant energy-saving effect. Therefore, the foamed ceramics made using the distributed high-efficiency energy-saving and environmentally friendly industrial kiln can reduce the cost to about 400 yuan / cubic meter, and thus have more price advantages. Once the foamed ceramic products have both price and performance advantages, it will be greatly beneficial to the market development of the green and environmentally friendly products with excellent performance.

[0067] The following specific data will illustrate the advantages of this distributed high-efficiency energy-saving and environmentally friendly industrial kiln compared to the currently common industrial kilns. Among them, Table 2 is a comparison table of the foamed ceramic firing time of the currently common tunnel kilns, roller kilns and the distributed high-efficiency energy-saving and environmentally friendly industrial kilns of this application. Table 1 is a comprehensive cost comparison table of the three-layer tunnel kiln, roller kiln, and the distributed high-efficiency energy-saving and environmentally friendly industrial kiln of this application in terms of investment, land use, gas use, electricity use and production capacity. It can be seen from Tables 1 and 2 that with the same or even less investment, less land use, more environmental protection, and more energy saving, the production capacity of this distributed high-efficiency energy-saving and environmentally friendly industrial kiln can be increased by at least 3 times or more, and the cost is relatively low.

[0068] It should be noted that in Table 2, the firing time of foamed ceramics refers to the time difference between the product to be fired entering the tunnel / kiln and the fired product exiting the tunnel / kiln, which includes the preheating time, firing time, and cooling time; since the preheating zone, firing zone, and cooling zone of the tunnel kiln and roller kiln are integrated linearly connected in series, the firing time is the maximum time value of these three times; in this distributed high-efficiency energy-saving and environmentally friendly industrial kiln, since the preheating bin 100, the firing kiln 200, and the cooling bin 300 are independent and run in parallel without interfering with each other, it is possible to achieve the purpose of using space for time and saving a lot of time. In Table 1, the comprehensive cost of foamed ceramics is calculated under the following conditions: gas price 2.8 yuan / cubic meter; average electricity price 1.1 yuan / kWh (weighted average of electricity peak and trough); equipment depreciation is allocated to the cost according to the equipment depreciation rate of the national standard.

[0069] Table 1

[0070]

[0071] Table 2

[0072]

[0073] It should be noted that in order to save production land and avoid wasting precious land resources, the preheating bin 100 and / or the firing kiln 200 and / or the cooling bin 300 are arranged below the ground. For example, the firing kiln 200, the cooling bin 300, the preheating bin 100, etc. can be built underground, and can even be stacked, that is, the firing kiln 200 and the cooling bin 300 can be built on the preheating bin 100. Among them, the firing kiln 200 is preferably built below the ground, of course, the firing kiln 200 can also be built above the ground, and its size can be determined according to actual needs; the cooling bin 300 is preferably built below the ground, of course, the cooling bin 300 can also be built above the ground, and its size can be determined according to actual needs; the preheating bin 100 is preferably built below the ground, at this time, all the space above the ground of the preheating bin 100 can be used according to actual needs, including the processing area for ceramic products, etc., of course, the preheating bin 100 can also be built above the ground, and its size can be determined according to actual needs.

[0074] See also Figure 1 , Figure 2 as well as Figure 6 and Figure 7In this embodiment, the preheating bin body has a preheating tunnel 110, and the preheating tunnel 110 has a tunnel entrance 111 and a tunnel exit 112. The tunnel entrance 111 and the tunnel exit 112 are both provided with preheating bin doors (not shown), and the tunnel exit 112 is arranged adjacent to the firing kiln 200, and the cooling bin 300 is arranged adjacent to the firing kiln 200. Here, the preheating bin 100 also includes an anti-dumping kiln car 600, and the preheating bin door can be automatically opened and closed to facilitate the anti-dumping kiln car 600 to enter and exit, and after the anti-dumping kiln car 600 enters the preheating tunnel 110, the preheating bin door is closed to avoid heat loss as much as possible. The tunnel exit 112 is disposed adjacent to the firing kiln 200. Specifically, it is preferred that the firing kiln 200 is built underground near the tunnel exit 112. This allows the preheated ceramic products to be loaded into the firing kiln 200 more quickly by the hoisting equipment. Similarly, the cooling bin 300 is disposed adjacent to the firing kiln 200, which also allows the fired ceramic products to be transferred from the firing kiln 200 to the cooling bin 300 more quickly for the next step of cooling.

[0075] Specifically in this embodiment, the preheating bin is U-shaped, and a U-shaped preheating tunnel 110 is formed inside the preheating bin; the preheating bin 100 also includes a loop track 120, and the loop track 120 includes a first track segment 121 and a second track segment 122, the first track segment 121 is U-shaped and built into the preheating tunnel 110, and the second track segment 122 is located outside the preheating bin, and the first track segment 121 is gradually inclined downward from the tunnel entrance 111 to the tunnel exit 112 along the track direction. Specifically, the inclination slope of the first track segment 121 is between one thousandth and ten thousandths, so that the anti-dumping kiln car 600 can slide from the tunnel entrance to the tunnel exit 112 by itself under the action of gravity, and during the sliding process of the anti-dumping kiln car 600, the ceramic products loaded on the anti-dumping kiln car 600 can be preheated.

[0076] See also Figure 1 and Figure 2 In this embodiment, the bottom of the preheating bin, the side walls of the preheating bin and the preheating bin cover are all made of insulation materials; specifically, the bottom of the preheating bin 100 is provided with insulation bricks, and the side walls of the preheating bin are insulation walls. The U-shaped preheating bin includes two parallel sections that are relatively spaced and parallel and an arc section connecting the two parallel sections. The firing kiln 200 and the cooling bin 300 are located in the area between the two parallel sections. In this way, the length of the preheating tunnel 110 can be extended while minimizing the land occupation, ensuring that the ceramic products can be fully preheated, and also facilitating the operation of subsequent processes.

[0077] See also Figures 7 to 9In this embodiment, the anti-dumping kiln car 600 includes a car plate 610, wheels 620 and hooks 630; the return track 120 includes two spaced parallel rails 123, the car plate 610 has two opposite edges of the car plate 610 that exceed the outer side of the rails 123; the wheels 620 are installed on the bottom surface of the car plate 610 and can slide on the rails 123, and a plurality of hooks 630 are arranged on the edges of the two car plates 610, and the hooks 630 have a curved hook portion facing the outer side of the rails 123. Of course, a fault alarm device is also provided on the anti-dumping kiln car 600. It can be understood that the car plate 610 of the anti-dumping kiln car 600 is used to place the loading plate 700, on which ceramic products are loaded; when the anti-dumping kiln car 600 slides on the track, the L-shaped hook 630 is automatically lowered, and a suitable gap is left between the hook 630 and the track 123 to allow the anti-dumping kiln car 600 to be lifted; when a foreign object causes the anti-dumping kiln car 600 to be lifted on one side, the hook 630 on the lifted side is also lifted accordingly, and when the lifting height of the anti-dumping kiln car 600 exceeds the gap between the hook 630 and the track 123, the hook 630 will be tightly stuck on the track 123, so as to prevent the anti-dumping kiln car 600 from being over-lifted on one side and causing rollover. At the same time, when the hook 630 is tightly stuck to the track 123, the fault alarm device will be triggered, so that the production personnel can be informed of the fault condition as soon as possible.

[0078] Furthermore, in this embodiment, the industrial kiln further includes an intelligent robot arm 800, and the intelligent robot arm 800 is disposed adjacent to the preheating chamber 100 and the loading area 510. Figure 1 As shown, the robot arm is preferably located between the loading area 510 and the unloading area 520 to facilitate the loading and unloading of ceramic products.

[0079] See also Figure 1 and Figure 2In this embodiment, the loading area 510 and the unloading area 520 are independently arranged relative to the preheating bin 100, the firing kiln 200 and the cooling bin 300; the loading area 510 is arranged adjacent to the tunnel entrance 111, and the unloading area 520 is arranged adjacent to the tunnel exit 112. Specifically, the loading area 510 and the unloading area 520 are connected to the second track section 122 of the return track 120 through a track, and the anti-dumping kiln car 600 can automatically slide from the tunnel exit 112 to the unloading area 520, and then the intelligent mechanical arm 800 removes the loading plate 700 loaded with ceramic products, and then pushes the anti-dumping kiln car 600 to the loading area 510 for next use. Here, there is a track connection between the unloading area 520 and the loading area 510, but because the loading area 510 is higher than the unloading area 520, the track has a large slope, and an external force is required to push the anti-dumping kiln car 600 to the loading area 510. Then, in the loading area 510, the ceramic products to be fired are placed on the loading plate 700 by the intelligent robotic arm 800, and the loading plate 700 is placed on the anti-dumping kiln car 600 and fixed in position by the intelligent robotic arm 800. Then, the anti-dumping kiln car 600, the loading plate 700 and the ceramic products to be fired will pass through the U-shaped preheating tunnel 110 for preheating and finally reach the tunnel exit 112.

[0080] See also Figure 4 and Figure 3 In this embodiment, the bottom of the kiln body, the side walls of the kiln body and the kiln cover are all made of refractory materials, and the bottom of the kiln body, the side walls of the kiln body and the kiln cover enclose a heating chamber (not shown), and the ceramic products are placed on the loading plate 700 and built into the heating chamber. Specifically, the bottom of the kiln body is provided with refractory bricks, and the side walls of the kiln body form refractory walls. After the kiln cover is closed, the heating chamber is a closed space.

[0081] Here, the intelligent electric flame heating device 210 includes a plurality of electric flame guns 211, one end of each electric flame gun 211 is connected to the side wall of the kiln body, and the other end of the electric flame gun 211 extends into the heating chamber. Figure 3As shown, the electric flame gun 211 is arranged in a rich character shape or an F shape, including a main rod 211a and a plurality of branch rods 211b; the main rod 211a is connected to the sliding member 212a, and the branch rods 211b are formed by radially extending along the cross-section of the main rod 211a from the main rod 211a, and the plurality of branch rods 211b are arranged at intervals along the axial direction of the main rod 211a; a flame ejection port 211c is formed at the free end of the branch rod 211b away from the main rod 211a. During firing, flames with a length of 20 - 30 cm can be ejected from these flame ejection ports 211c. It can be understood that the method of using electric flame heating in this application has the following advantages: Firstly, the electric flame uses electric energy instead of gas energy, so zero carbon emissions can be achieved, which is very environmentally friendly. Secondly, since the firing kiln 200 is closed during firing, there is basically no heat loss during the firing process, so faster heating can be achieved, reducing the firing time. Specifically, the average firing time of each kiln can be reduced by at least more than 2 hours; and no heat loss also means that more energy can be saved, at least more than 3 times the energy can be saved. Thirdly, since the electric flame is a high-temperature plasma, it can directly contact the ceramic product without causing pollution, and has the advantages of faster heating and more uniform heating of the ceramic product. Fourthly, in the closed kiln body, according to the actual needs of the fired ceramic product, through the intelligent control of the intelligent electric flame heating device 210 by the control system, precise temperature rise control can be achieved, thereby ensuring the firing quality of the ceramic product and being beneficial to improving the yield rate of the product; of course, after the firing is completed, through the intelligent ventilation system 900, precise temperature drop control can also be achieved to prevent uncontrolled sharp temperature drop from causing problems with the product quality.

[0082] Please refer to Figure 4 and Figure 3, in this embodiment, the intelligent electric flame heating device 210 further includes a moving device (not labeled) installed on the side wall of the kiln body. One end of the electric flame gun 211 is installed on the side wall of the kiln body through the moving device. The moving device includes a first driving mechanism 216 and a sliding member 212a. A sliding installation hole is provided on the side wall of the kiln body. The sliding member 212a is installed at the sliding installation hole and is slidably connected to the side wall of the kiln body, and the sliding member 212a always covers the sliding installation hole during the sliding process. One end of the electric flame gun 211 is connected to the sliding member 212a. The first driving mechanism 216 is arranged outside the kiln body and is used to drive the sliding member 212a to drive the electric flame gun 211 to move and drive the electric flame gun 211 to rotate. In this way, the control system can intelligently control the first driving mechanism 216 to drive the sliding member 212a to move, thereby realizing the front-back, horizontal movement and 180° rotation of the electric flame gun 211, so as to make the fired ceramic products heated more evenly to ensure the firing quality. In addition, the intelligent electric flame heating device 210 further includes multiple sets of Tesla coils 215, a low-voltage interface 213, a high-voltage interface 214, an industrial thermometer 930, etc. Among them, the Tesla coils 215, the low-voltage interface 213, and the high-voltage interface 214 are all arranged outside the kiln body. The low-voltage interface 213 is used to connect to industrial electricity. Then the low-voltage interface 213 is connected to the Tesla coils 215 through a circuit, and then raised to a specific voltage through the Tesla coils 215 and connected to the high-voltage interface 214 through a circuit. At the same time, the electric flame gun 211 is connected to the high-voltage interface 214 through a wire. In this way, after power-on, an electric flame can be generated at the spout 211c of the electric flame gun 211 to heat the ceramic products. Specifically, before the kiln cover is closed and preheated, the control system can control the first driving mechanism 216 to move the electric flame gun 211 between the loading plates 700, and at the same time control the rotation of the electric flame gun 211 in the shape of a Chinese character "feng" so that its spout 211c forms an angle of 5° to 10° with the ceramic product to be fired. During the firing process, the controlled sliding member 212a can drive the electric flame gun 211 to move back and forth and horizontally left and right at the same time. When the electric flame moves to the edge of the ceramic product, the electric flame gun 211 can be rotated about 170°, and then moved back and forth and horizontally left and right. Thus, the electric flame can evenly heat the ceramic products. At the same time, according to the temperature change transmitted back by the industrial thermometer 930, the number of spouts 211c of the electric flame gun 211 in the shape of a Chinese character "feng" that are opened can also be controlled to achieve precise control of the heating curve in the firing kiln 200. After the firing is completed, when the kiln cover is opened or about to be opened, the first driving mechanism 216 can drive the sliding member 212a to drive the electric flame gun 211 to move back to the side wall of the kiln body, that is, into the refractory wall, through front-back, horizontal movement and 180° rotation.

[0083] Furthermore, in this embodiment, the kiln cover includes a refractory layer located in the inner layer and a metal plate stacked on the outside of the refractory layer; the firing kiln 200 also includes a second driving mechanism (not shown) and a locking device (not shown); the second driving mechanism is installed on the outer surface of the kiln body and connected to the metal plate, and is used to drive the kiln cover to open or close; the locking device is arranged on the metal plate, and is used to lock or unlock the kiln cover. Specifically, the refractory layer of the kiln cover is mainly composed of refractory bricks, the metal plate is preferably a steel plate, the refractory bricks and the steel plate are bonded by an adhesive, the second drive mechanism can be but not limited to an integrated drive motor with a drive wheel, and the guide rail is fixed on the outer wall of the firing kiln 200; when the control system sends a kiln cover opening command to the firing kiln 200 automation management subsystem, the management subsystem will control the locking device to automatically unlock, and then the second drive mechanism is powered on, and the drive motor drives the integrated drive wheel to move on the guide rail to open the kiln cover; when the control system sends a kiln cover closing command, its closing process is opposite to the opening process, and after the kiln cover is closed, the locking device will automatically lock to prevent the kiln cover from suddenly opening during the firing process, resulting in firing failure or even a safety accident. However, the present design is not limited to this, and in other embodiments, the opening and closing of the kiln cover can also be achieved through a second drive mechanism of other structural designs.

[0084] In addition, in this embodiment, the bottom of the cooling bin, the side walls of the cooling bin and the cooling bin cover are all made of thermal insulation materials; the bottom of the cooling bin, the side walls of the cooling bin and the cooling bin cover enclose a cooling chamber. Specifically, thermal insulation bricks are provided at the bottom of the cooling bin, the side walls of the cooling bin form thermal insulation walls, and the cooling chamber is connected to the intelligent ventilation system 900 to ensure that the fired ceramic products can be fully cooled after being placed in the cooling chamber by the hoisting equipment.

[0085] See also Figure 8 and Fig. 9In this embodiment, a first positioning portion 710 is provided at the bottom of the loading plate 700, and a second positioning portion adapted to be positioned and connected with the first positioning portion 710 is provided at the bottom of the kiln body and the bottom of the cooling chamber; in addition, a third positioning portion 720 is provided on the upper surface of the loading plate 700, and multiple loading plates 700 can be stacked and arranged, and a second positioning portion can also be provided on the car plate 610 of the anti-dumping kiln car 600. Specifically, the loading plate 700 is a rectangular plate, and of course, it can also be other shapes set according to actual needs. The first positioning portion 710 can be, but is not limited to, a solid positioning rod, and the second positioning portion is a hollow positioning hole adapted to the positioning rod. In order to improve the positioning and connection effect, a positioning rod is provided at each of the four corners of the loading plate 700, and the third positioning portion 720 can also be a hollow positioning hole adapted to the positioning rod. When in use, firstly, the ceramic products to be fired are placed on the loading plate 700, and then, when the loading plate 700 is hoisted onto the anti-dumping kiln car 600, the positioning rods can be inserted into the corresponding positioning holes to realize the positioning and placement of the loading plate 700, so that the loading plate 700 can be prevented from moving forward, backward, left and right on the anti-dumping kiln car 600. Similarly, when the loading plate 700 is placed in the firing kiln 200 and the cooling bin 300, the positioning rods and the positioning holes provided at the bottom of the firing kiln 200 and the cooling bin 300 can also be adapted to prevent the loading plate 700 from moving.

[0086] It should also be noted that, in this embodiment, the industrial kiln also includes an insulated hoisting box (not shown), which is made of insulating material. The insulated hoisting box is connected to the loading plate 700 and covers the ceramic products placed on the loading plate 700. Here, the insulated hoisting box mainly insulates the ceramic products during the hoisting process to prevent the ceramic products from experiencing large temperature changes during the hoisting process. Specifically, the insulated hoisting box is open downward, including a top plate and four side plates surrounding it. Its main frame is preferably made of steel, and the top plate and side plates are preferably made of insulating material; a plurality of hoisting hooks are provided on the top surface of the top plate, and a plurality of sets of wirelessly controlled automatic locking devices are provided on the bottom edge of the side plates. Before lifting, the control system will send a wireless signal to wirelessly control the automatic locking device to unlock; then, after the ceramic products on the loading plate 700 are placed, the lifting equipment can be moved to lift the thermal insulation lifting box and cover the loading plate 700 and the ceramic products. At this time, the control system will wirelessly control the automatic locking device to lock, so that the bottom of the side panel is firmly connected to the loading plate 700 to ensure that the loading plate 700 will not fall off when the thermal insulation lifting box is lifted; when the lifting is completed and the loading plate 700 and the ceramic products are placed, the control system will wirelessly control the automatic locking device to unlock again to separate the thermal insulation lifting box from the loading plate 700. Finally, the lifting equipment is used to lift the thermal insulation lifting box away.

[0087] See also Figure 1 , Figure 2as well as Figure 5 In this embodiment, the intelligent ventilation system 900 includes an air duct group, multiple groups of fans 940, multiple ventilation communication devices 910 and multiple thermometers 930. A ventilation communication device 910 is provided at the air inlet and outlet of the preheating chamber 100, the air inlet and outlet of the firing kiln 200, and the air inlet and outlet of the cooling chamber 300. The air duct group includes a plurality of low-temperature cold air channels 921, a plurality of low-temperature hot air channels 922, a plurality of medium-temperature hot air channels 923 and a plurality of high-temperature hot air channels 924; thermometers 930 are provided in the high-temperature hot air channels 924 and the medium-temperature hot air channels 923 to measure the temperature in the channels in real time, and these temperature test values ​​will be uploaded to the control system; a fan 940 is provided in the high-temperature hot air channels 924, the medium-temperature hot air channels 923, the low-temperature hot air channels 922 and the low-temperature cold air channels 921. Here, the high-temperature hot air temperature in the high-temperature hot air channel 924 is above 800°C, the medium-temperature hot air temperature in the medium-temperature hot air channel 923 is between 200°C and 500°C; the low-temperature hot air temperature in the low-temperature hot air channel 922 is between 30°C and 60°C; the low-temperature cold air temperature in the low-temperature cold air channel 921 is between -40°C and 10°C.

[0088] Specifically, the air inlet of the kiln 200 is connected to a medium-temperature hot air channel 923 and a high-temperature hot air channel 924 respectively through a ventilation connection device 910; the air outlet of the kiln 200 is connected to a high-temperature hot air channel 924 through a ventilation connection device 910; the air inlet of the preheating chamber 100 is connected to the air outlet of the kiln 200 through a ventilation connection device 910 and a high-temperature hot air channel 924, so that the hot air of the kiln 200 during the cooling process can enter the preheating chamber 100, realize the reuse of heat, and reduce the overall energy consumption; the air outlet of the preheating chamber 100 is connected to a medium-temperature hot air channel 923 and a high-temperature hot air channel 924 respectively .... The warm hot air channel 923 is connected to the air inlet of the firing kiln 200; the air inlet of the cooling bin 300 is respectively connected to a medium-temperature hot air channel 923, a low-temperature hot air channel 922 and a low-temperature cold air channel 921 through a ventilation connecting device 910; the air outlet of the cooling bin 300 is respectively connected to a high-temperature hot air channel 924, a medium-temperature hot air channel 923 and a low-temperature hot air channel 922 through a ventilation connecting device 910, wherein the high-temperature hot air channel 924 and the medium-temperature hot air channel 923, both of which are connected to the air outlet of the cooling bin 300, are also connected through a pipeline.

[0089] Furthermore, in this embodiment, the industrial kiln also includes an air drying tower 950, which is also a completely independent single unit. The air inlet of the air drying tower 950 is connected to the air outlet of the preheating bin 100 through a medium-temperature hot air channel 923, so that the medium-temperature hot air in the preheating bin 100 can enter the air drying tower 950 to improve the air drying efficiency of the air drying tower 950; the air outlet of the air drying tower 950 is connected to the air inlet of the cooling bin 300 through a low-temperature hot air channel 922, which is a supply channel for low-temperature hot air. In addition, one end of the low-temperature cold air channel 921 is connected to the external environment, and the other end is connected to the high-temperature hot air channel 924, so that the cold air from the outside can be mixed with the high-temperature hot air to form medium-temperature hot air. Of course, in the cooling bin 300, the medium-temperature hot air entering through the air inlet of the cooling bin 300 and the low-temperature cold air entering through the air inlet of the cooling bin 300 are mixed to form low-temperature hot air, and the low-temperature hot air can enter the corresponding low-temperature hot air channel 922 through the air outlet of the cooling bin 300 to achieve recycling.

[0090] The operation process of the distributed high-efficiency energy-saving and environmentally friendly industrial kiln is described in detail below, especially the intelligent scheduling process of the intelligent ventilation system 900.

[0091] First, in the loading area 510 , the production staff uses the intelligent robot arm 800 to place the ceramic products to be fired on the loading plate 700 , and the loading plate 700 is then placed on the anti-dumping kiln car 600 by the intelligent robot arm 800 and positioned and fixed.

[0092] Then, the anti-dumping kiln car 600 loaded with the ceramic products to be fired enters the U-shaped preheating bin 100 for preheating, and arrives at the tunnel exit 112 of the preheating bin 100 after preheating; the production personnel separate the loading plate 700 and the anti-dumping kiln car 600 through the intelligent robotic arm 800, and the anti-dumping kiln car 600 returns to the loading area 510 for next use; here, multiple loading plates 700 can be positioned and stacked into multiple layers by the intelligent robotic arm 800, and the ceramic products are located in the space between two adjacent loading plates 700.

[0093] Then, the control system controls the kiln cover of the firing kiln 200 to open, and the air inlet and outlet of the firing kiln 200 to close; the hoisting equipment hoists the loading plate 700 with the ceramic products into the heating chamber of the kiln body, and the lowermost loading plate is positioned and fixed to the bottom of the kiln body; the kiln cover is closed, and the control system controls the intelligent electric flame heating device 210 to be powered on, and multiple groups of electric flame guns 211 generate electric flames to achieve heating of the ceramic products; after the firing is completed, the power is turned off, at this time, the ventilation and connecting device 910 is controlled to open the high-temperature tuyere therein, and the hot air in the heating chamber is pumped from the air outlet of the firing kiln 200 to the high-temperature hot air channel 924 through the corresponding fan 940, and at the same time, the medium-temperature tuyere is also opened, and the medium-temperature hot air is sent into the heating chamber from the air inlet of the kiln body through the corresponding fan 940 to To achieve cooling; here, in order to ensure the firing quality, the temperature in the heating chamber should not drop rapidly, but should be slowly cooled down through the delivery of medium-temperature hot air, and by controlling the supply volume of medium-temperature hot air and the extraction volume of high-temperature hot air, the cooling curve of the firing kiln 200 can be accurately controlled. The medium-temperature hot air in the medium-temperature hot air channel 923 can come from the preheating bin 100 and the air drying tower 950; when the temperature in the firing kiln 200 reaches the preset temperature, the medium-temperature air outlet is closed, but the hot air is still continuously extracted into the high-temperature hot air channel 924. At this time, the kiln cover can be opened to realize double air outlet to exhaust hot air, and the hoisting equipment puts the insulation hoisting box into the kiln body and connects it to the loading plate 700, and then the insulation hoisting box and the loading plate 700 are hoisted out of the firing kiln 200 and placed in the cooling bin 300.

[0094] Then, when the loading plate 700 and the ceramic products to be cooled are placed in the cooling bin 300, the ventilation and communication device 910 is controlled to open the high-temperature vents therein, and the hot air in the cooling bin 300 is drawn into the high-temperature hot air channel 924 through the air outlet of the cooling bin 300. At the same time, the ventilation and communication device 910 is controlled to open the medium-temperature vents, and the medium-temperature hot air is sent into the cooling bin 300 through the air inlet of the cooling bin 300, which is used for the first stage of cooling of the cooling bin 300. In this cooling stage, the supply volume of the medium-temperature hot air and the extraction volume of the hot air are controlled to achieve cooling. Precise control of the cooling curve of the cooling chamber 300; when the temperature of the cooling chamber 300 reaches the preset temperature, the cooling chamber 300 should be filled with medium-temperature hot air. At this time, the high-temperature air outlet is closed, and the medium-temperature hot air in the cooling chamber 300 is pumped to the medium-temperature hot air channel 923 through the air outlet of the cooling chamber 300. At the same time, the low-temperature air outlet of the ventilation and communication device 910 is opened, and the low-temperature hot air enters the cooling chamber 300 from the low-temperature hot air channel 922 through the air inlet of the cooling chamber 300 to achieve further cooling. In this way, after the second stage of cooling, the temperature in the cooling chamber 300 will be close to normal temperature. Of course, if further cooling is required or rapid cooling is required in the second cooling stage, the low-temperature air outlet of the ventilation and communication device 910 can be opened, and then the low-temperature cold air in the low-temperature cold air channel 921 can be transported into the cooling chamber 300 through the air inlet of the cooling chamber 300.

[0095] Then, the door of the cooling bin 300 is opened, and the loading plate 700 with the ceramic products is lifted out using a lifting device and placed in the unloading area 520. The intelligent robotic arm 800 removes the fired ceramic products from the loading plate 700 for subsequent processing, and the remaining loading plate 700 is reserved for next use.

[0096] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A distributed high-efficiency, energy-saving and environmentally friendly industrial kiln for firing ceramic products, characterized in that: include: If there are preheating bins, each of the preheating bins is provided as an independent unit, and the preheating bins include a preheating bin body and a preheating bin door provided at the bin opening of the preheating bin body, and the preheating bin door can be movably opened and closed to open or close the preheating bin body; A plurality of firing kilns, each of which is independently provided and spaced apart from the preheating chamber; the firing kiln comprises a kiln body, a kiln cover covering the top of the kiln body and being movable, and an intelligent electric flame heating device provided on the side wall of the kiln body; A plurality of cooling bins, each of which is independently provided and spaced apart from the preheating bin and the firing kiln; the cooling bin comprises a cooling bin body and a cooling bin cover provided at the bin opening of the cooling bin body, and the cooling bin cover can be movably opened and closed to open or close the cooling bin body; A hoisting device is disposed above the preheating bin, the firing kiln and the cooling bin, and the hoisting device is movable and used to hoist or load the loading plate with the ceramic products placed thereon from or into the preheating bin, the firing kiln and the cooling bin respectively; An intelligent ventilation system, the intelligent ventilation system is connected to the firing kiln, the preheating chamber and the cooling chamber respectively; and A control system, wherein the control system is respectively connected to the preheating bin, the firing kiln, the cooling bin, the hoisting equipment and the intelligent ventilation system; The preheating bin has a preheating tunnel, the preheating tunnel has a tunnel entrance and a tunnel exit, the tunnel entrance and the tunnel exit are both provided with the preheating bin door, the tunnel exit is arranged adjacent to the firing kiln, and the cooling bin is arranged adjacent to the firing kiln; The preheating chamber is U-shaped, and a U-shaped preheating tunnel is formed inside the preheating chamber; The preheating chamber further includes a circular track, the circular track includes a first track segment and a second track segment, the first track segment is U-shaped and built into the preheating tunnel, the second track segment is located outside the preheating chamber body, and the first track segment is gradually inclined downward from the tunnel entrance to the tunnel exit along the track direction; The industrial kiln further comprises a loading area and an unloading area, wherein the loading area and the unloading area are independently arranged relative to the preheating bin, the firing kiln and the cooling bin; The loading area is arranged adjacent to the tunnel entrance, and the unloading area is arranged adjacent to the tunnel exit; The industrial kiln further comprises an intelligent mechanical arm, and the intelligent mechanical arm is arranged adjacent to the preheating chamber and the loading area; The preheating chamber and / or the firing kiln and / or the cooling chamber are arranged below the ground.

2. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in claim 1, characterized in that: The bottom of the preheating bin, the side walls of the preheating bin and the preheating bin cover are all made of thermal insulation material; The preheating bin body comprises two parallel sections which are spaced apart from each other and are parallel to each other, and an arc section connecting the two parallel sections. The firing kiln and the cooling bin are located in the area between the two parallel sections.

3. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in claim 1, characterized in that: The preheating bin also includes an anti-dumping kiln car; the anti-dumping kiln car includes a car plate, wheels and a hook; The circular track includes two spaced-apart parallel rails, the vehicle plate has two opposite vehicle plate edges that extend beyond the outer sides of the rails; the wheels are mounted on the bottom of the vehicle plate and can slide on the rails, a plurality of hooks are disposed on the two vehicle plate edges, and the hooks have a curved hook portion facing the outer sides of the rails.

4. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in any one of claims 1 to 3, characterized in that: The bottom of the kiln body, the side walls of the kiln body and the kiln cover are all made of refractory materials, the bottom of the kiln body, the side walls of the kiln body and the kiln cover enclose a heating chamber, and the ceramic product is placed on the loading plate and built into the heating chamber; The intelligent electric flame heating equipment comprises a plurality of groups of electric flame guns, one end of each group of electric flame guns is connected to the side wall of the kiln body, and the other end of the electric flame gun extends into the heating chamber.

5. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in claim 4, characterized in that: The intelligent electric flame heating equipment further comprises a moving device mounted on the side wall of the kiln body, and one end of the electric flame gun is mounted on the side wall of the kiln body through the moving device; The moving device comprises a first driving mechanism and a sliding member, a sliding installation hole is provided on the side wall of the kiln body, the sliding member is installed at the sliding installation hole and is slidably connected to the side wall of the kiln body, and the sliding member always covers the sliding installation hole during the sliding process; One end of the electric flame gun is connected to the sliding member; the first driving mechanism is arranged on the outer side of the kiln body and is used to drive the sliding member to drive the electric flame gun to move and rotate.

6. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in claim 5, characterized in that: The electric flame gun is arranged in a Feng shape or F shape, including a main rod and a plurality of support rods; the main rod is connected to the sliding member, the support rods are radially extended from the main rod along the cross section of the main rod, and the plurality of support rods are arranged at intervals along the axial direction of the main rod; a flame-spraying port is provided at the free end of the support rod away from the main rod.

7. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in claim 4, characterized in that: The kiln cover includes a refractory layer located at the inner layer and a metal plate stacked on the outer side of the refractory layer; The firing kiln also includes a second driving mechanism and a locking device; the second driving mechanism is installed on the outer surface of the kiln body and connected to the metal plate, and is used to drive the kiln cover to open or close; the locking device is arranged on the metal plate, and is used to lock or unlock the kiln cover.

8. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in any one of claims 1 to 3, characterized in that: The intelligent ventilation system includes an air duct group, multiple groups of fans, multiple ventilation communication devices and multiple thermometers; the air inlet and air outlet of the preheating bin, the air inlet and air outlet of the firing kiln, and the air inlet and air outlet of the cooling bin are all provided with a ventilation communication device; The air duct group includes a plurality of low-temperature cold air ducts, a plurality of low-temperature hot air ducts, a plurality of medium-temperature hot air ducts and a plurality of high-temperature hot air ducts; the high-temperature hot air duct and the medium-temperature hot air duct are both provided with the thermometer; the high-temperature hot air duct, the medium-temperature hot air duct, the low-temperature hot air duct and the low-temperature cold air duct are each provided with a fan; The air inlet of the firing kiln is connected to the medium-temperature hot air channel and the high-temperature hot air channel respectively through the ventilation and communication device; the air outlet of the firing kiln is connected to the high-temperature hot air channel through the ventilation and communication device; The air inlet of the preheating bin is connected to the air outlet of the firing kiln through the ventilation communication device and the high-temperature hot air channel, and the air outlet of the preheating bin is connected to the air inlet of the firing kiln through the medium-temperature hot air channel; The air inlet of the cooling bin is respectively connected with one of the medium-temperature hot air channels, one of the low-temperature hot air channels and one of the low-temperature cold air channels through the ventilation connecting device; the air outlet of the cooling bin is respectively connected with one of the high-temperature hot air channels, one of the medium-temperature hot air channels and one of the low-temperature hot air channels through the ventilation connecting device, wherein the high-temperature hot air channel and the medium-temperature hot air channel both of which are connected with the air outlet of the cooling bin are connected.

9. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln as claimed in claim 8, characterized in that: The industrial kiln also includes an air drying tower, the air inlet of the air drying tower is connected to the air outlet of the preheating bin through the medium-temperature hot air channel; the air outlet of the air drying tower is connected to the air inlet of the cooling bin through the low-temperature hot air channel.

10. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln according to any one of claims 1 to 3, characterized in that: The bottom of the cooling bin body, the side walls of the cooling bin body and the cooling bin cover are all made of heat-insulating materials; the bottom of the cooling bin body, the side walls of the cooling bin body and the cooling bin cover enclose a cooling cavity.

11. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln according to any one of claims 1 to 3, characterized in that: The bottom of the loading plate is provided with a first positioning portion, and the bottom of the kiln body and the bottom of the cooling bin are both provided with a second positioning portion adapted to be positioned and connected with the first positioning portion; The upper surface of the loading plate is further provided with a third positioning portion, and a plurality of the loading plates can be stacked.

12. A distributed high-efficiency energy-saving and environmentally friendly industrial kiln according to any one of claims 1 to 3, characterized in that: The industrial kiln also includes a heat-insulating hoisting box, which is made of heat-insulating material. The heat-insulating hoisting box is connected to the loading plate and covers the ceramic product placed on the loading plate.

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