Energy-saving low-carbon grate cooler and using method thereof

Abstract

The invention discloses an energy-saving low-carbon grate cooler and a using method thereof.The energy-saving low-carbon grate cooler comprises two fixedly-arranged supporting seats, an inertia raising mechanism is installed on the supporting seats, a six-step plate is installed on the inertia raising mechanism, a shell is fixedly connected to the top face of the six-step plate, and six grate plate assemblies are fixedly installed on six steps of the six-step plate; the tail end of the grid plate assembly extends out of the step; the inner wall of the middle of the shell is fixedly connected with a partition plate, and the top face, located above the highest grid plate assembly, of the shell is connected with a kiln head cover. An air pipe is fixedly mounted on the side wall of each step below the six-step plate and is used for supplying cold air to the grid plate assembly; and the bottom of the lowest step of the six-step plate communicates with a discharge port. The invention relates to the technical field of grate coolers. The grate cooler solves the problem that a traditional grate cooler is low in cooling efficiency due to insufficient contact between materials and cold air.

Description

Technical Field

[0001] The invention relates to the technical field of grate coolers, and in particular to an energy-saving and low-carbon grate cooler and a use method thereof. Background Art

[0002] In many industrial production fields such as cement and metallurgy, cooling of high-temperature materials is a crucial process. Take cement production as an example. The temperature of clinker fired from the rotary kiln is usually as high as 1200℃-1400℃. If it is not cooled in time and efficiently, it will not only affect the quality and performance of subsequent cement products, but also hinder the smoothness of the entire production process.

[0003] As a commonly used cooling equipment, traditional grate coolers have exposed many problems that limit the improvement of cooling efficiency in long-term practical applications. The structure of early grate coolers was relatively simple, and their grate plates were mostly fixed or had only a single reciprocating motion. The materials accumulated on this type of grate plate, and their contact with the cold air mainly relied on natural convection, and the contact area and time were extremely limited. Studies have shown that in this case, the effective contact area between the material and the cold air can only reach 30%-40% of the theoretical maximum value, resulting in a large amount of heat that cannot be taken away in time, and the material cooling time is greatly extended, which seriously affects production efficiency.

[0004] Although some improved grate coolers have added grate plate movement forms, such as step-type grate plates, the material turning effect is still unsatisfactory. The movement of materials on the grate plate is relatively slow, making it difficult to fully break up and lift them, making it difficult for cold air to penetrate the material layer in all directions and depths. Relevant experimental data show that when using a step-type grate plate, the penetration depth of cold air into the material layer can only reach 50%-60% of the material layer thickness on average. A large amount of heat inside the material cannot be effectively dissipated, resulting in low cooling efficiency, which further restricts the increase in production capacity.

[0005] With the continuous expansion of industrial production scale and the increasing requirements for energy conservation and emission reduction, the shortcomings of traditional grate coolers in cooling efficiency have become increasingly prominent. Developing an energy-saving and low-carbon grate cooler and its use method has become a key issue that the industry needs to solve urgently. Summary of the invention

[0006] In order to solve the problem of low cooling efficiency of traditional grate coolers due to insufficient contact between materials and cold air, the purpose of the present invention is to provide an energy-saving and low-carbon grate cooler and a method of using the same.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an energy-saving and low-carbon grate cooler, comprising two fixed support seats, an inertial lifting mechanism is installed on the support seat, a six-step plate is installed on the inertial lifting mechanism, the top surface of the six-step plate is fixedly connected to an outer shell, six grate plate assemblies are fixedly installed on the six steps of the six-step plate, and the ends of the grate plate assemblies extend out of the steps where they are located, for dropping materials to the grate plate assembly on the next step; a partition is fixedly connected to the inner wall in the middle of the outer shell, for separating the upper and lower three grate plate assemblies; the top surfaces of the outer shell located on both sides of the partition are respectively fixedly connected with a first pipe interface and a second pipe interface connected to the interior thereof, and the top surface of the outer shell located above a grate plate assembly at the highest point is connected to a kiln head hood; the side wall of each step below the six-step plate is fixedly installed with an air duct, for supplying cold air to the grate plate assembly; the bottom of the lowest step of the six-step plate is connected with a discharge port;

[0008] The inertial lifting mechanism includes a support block fixedly installed at the bottom of the six-step plate, and a J-shaped groove is opened on the side wall of the support block. The inertial lifting mechanism also includes a turntable, and the end surface of the turntable is rotatably connected with two symmetrically arranged columns through a pin shaft, and the outer wall of the column is rollingly connected to the inner wall of the J-shaped groove; an elastic support component for elastically supporting the bottom and sides of the support block is installed below the support block.

[0009] Preferably, the two support seats are arranged one high and one low, and a horizontal portion is arranged at the bottom of the J-shaped groove; a first motor is fixedly mounted on the support seat, and an output end of the first motor is axially connected to the center of the turntable.

[0010] Preferably, the elastic support assembly includes a U-shaped frame fixedly mounted on the support seat, the inner wall of the U-shaped frame is fixedly connected to a horizontal guide rod, the outer wall of the horizontal guide rod is slidably connected with a movable block, the outer wall of the horizontal guide rod is sleeved with a first spring that is tightly pressed against the movable block, the top of the movable block is fixedly connected to a vertical guide rod, the outer wall of the vertical guide rod near the top is fixedly connected to a limiting block, a guide hole is provided at the bottom of the support block, and the inner wall of the guide hole is slidably sleeved on the outer wall of the vertical guide rod; a strip hole is provided on the side wall of the support block, the side wall of the limiting block is slidably connected to the inner wall of the strip hole, the outer wall of the vertical guide rod is sleeved with a second spring, and the top of the second spring is tightly pressed against the bottom of the support block.

[0011] Preferably, the grate plate assembly includes a first cavity plate, the side wall of the first cavity plate is fixedly connected to a plurality of second cavity plates connected to the interior thereof, the ends of the plurality of second cavity plates away from the first cavity plate are fixedly connected to the third cavity plate, the side wall of the air duct is fixedly provided with a rectangular interface, and the rectangular interface is fixedly passed through the side wall of the six-step plate and connected to the side of the first cavity plate; a plurality of air outlet holes are provided on the side wall of the second cavity plate near the bottom, and a filter is provided on the inner wall of the air outlet hole to prevent material from entering; a slider is slidably connected to the inner wall of the third cavity plate, and a through hole connected to the second cavity plate is provided on the side wall of the third cavity plate above the slider The inner wall of the third cavity plate above the through hole is fixedly connected with a block for resisting the top of the slider, the side wall of the third cavity plate near the top is provided with an air outlet, the side wall of the first cavity plate is fixedly connected to the side wall at the step above the six-step plate, the side wall between the first cavity plate and the third cavity plate is fixedly connected with the fourth cavity plate, the top surface of the fourth cavity plate is fixedly connected to the bottom of the second cavity plate, and they are connected to each other; the fourth cavity plate is provided with a blanking opening near the bottom of the third cavity plate; the bottom of the fourth cavity plate is fixedly connected to the steps of the six-step plate, and the blanking opening at the lowest step on the six-step plate is connected to the discharge port.

[0012] Preferably, the bottom of the partition is fixedly connected to the top of the third cavity plate; the first cavity plate, the second cavity plate, the third cavity plate and the fourth cavity plate are all made of silicon carbide ceramic material with good high temperature resistance and heat dissipation.

[0013] Preferably, the bottom of one side of the kiln head hood is inclined, and a fixing ring is fixedly connected to the side wall above the inclination; the fixing ring is located on the outer wall inside the kiln head hood and is rotatably sleeved with an annular hood, and the outer wall of the annular hood located below is fixedly connected to a cloth pipe connected to the interior thereof, and the side wall of the kiln head hood is fixedly installed with a second motor axially connected to the center of the end face of the annular hood, and a strip corrugated telescopic tube is connected to the bottom port of the kiln head hood, and the strip corrugated telescopic tube is connected to the top of the outer shell.

[0014] A method for using an energy-saving low-carbon grate cooler comprises the following steps:

[0015] Step 1: The air duct is connected to the fan, the kiln head cover is fixedly installed, the discharge end of the rotary kiln is rotatably sleeved in the kiln head cover, and the rotary kiln supplies clinker toward the kiln head cover; the first pipe interface is connected to the rotary kiln, and the second pipe interface is connected to the waste pipe;

[0016] Step 2: clinker falls from the kiln head cover onto the highest grate assembly;

[0017] Step three, the initial position of the lowest column is at the bottom of the J-shaped groove, the turntable rotates, and the lowest column rotates in the direction away from the J-shaped groove. At the moment when the lowest column leaves the J-shaped groove, the highest column contacts the inner wall of the J-shaped groove. At the same time, under the elastic support of the elastic support assembly on the bottom of the support block, the support block is lifted upward, and at the same time, the column pushes the inner wall of the J-shaped groove, then the six-step plate and the grate plate assembly are instantly lifted upward and move horizontally at the same time, and then the bottom of the J-shaped groove is blocked by the column, and the material on the grate plate assembly continues to move upward under the action of inertia, and the column continues to rotate, driving the support block to move downward, so that the material is lifted;

[0018] At the same time, when the six-step plate and the grate plate assembly are moving horizontally, the material on the grate plate assembly of the previous step is relatively still due to the inertia in the horizontal direction; and then falls on the grate plate assembly of the next step;

[0019] This goes back and forth alternately;

[0020] Step 4: When the material is lifted, the air duct supplies cold air to the grate assembly, and the cold air passes through the lifted material, and the cold air absorbs heat; when the material is not lifted, the cold air passes through the inside of the grate assembly, and the grate assembly absorbs heat and is then absorbed by the cold air;

[0021] Step 5: The high-temperature heat in the materials of the three upper steps is returned to the rotary kiln from the first pipe interface along with the airflow, so that the high-temperature heat is reused to achieve the effect of energy saving and low carbon;

[0022] The low-temperature heat in the materials of the three lower steps is discharged from the second pipe interface along with the air flow;

[0023] Step six, the cooled material is discharged through the discharge port.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention, through the interaction between the turntable, the J-shaped groove and the column, and the elastic support assembly, enables the six-step plate and the grate plate assembly to be instantly lifted upward and moved horizontally, and then the material is lifted up under the action of inertia, so that the material is continuously lifted up during the conveying process, which greatly increases the contact area and time between the material and the cold air, and significantly improves the cooling efficiency.

[0026] 2. The present invention arranges six grate plate assemblies on the six-step plate, and the material is transferred downward in sequence between the step grate plate assemblies, thereby achieving smooth and efficient transportation of the material, avoiding material accumulation and blockage, and ensuring the continuity of production.

[0027] 3. The present invention supplies cold air to the grate assembly through the air duct, and in different stages when the material is lifted and not lifted, cleverly utilizes the slider, block, through hole and the structural design of each cavity plate to achieve efficient heat exchange between the cold air and the material or the grate assembly under different conditions; when the material is lifted, the cold air directly passes through the material to take away the heat; when the material is not lifted, the cold air takes away the heat absorbed by the grate assembly, thereby improving the heat exchange efficiency and further enhancing the energy-saving effect.

[0028] 4. The present invention, through the inclined setting of the bottom of one side of the kiln head cover and the reciprocating rotation of the annular cover, enables the distribution pipe to swing back and forth, and evenly drops the clinker supplied by the rotary kiln on the bottom inclined surface of the kiln head cover, ensuring that the material is evenly distributed when entering the grate cooler, avoiding local material accumulation, facilitating the subsequent uniform cooling and transportation of the material on the grate plate assembly, and improving the consistency and stability of the entire cooling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the arrangement of six grate plate assemblies of the present invention;

[0032] Figure 3 It is a schematic structural diagram of the housing of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the inertial lifting mechanism of the present invention from the front view;

[0034] Figure 5 It is a three-dimensional structural schematic diagram of the inertial lifting mechanism of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the support block of the present invention;

[0036] Figure 7 It is a three-dimensional structural schematic diagram of the grate plate assembly of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the bottom of the grate plate assembly of the present invention;

[0038] Fig. 9 It is a schematic structural diagram of a cross-section of the grate plate assembly of the present invention.

[0039] In the figure: 1, support seat; 2, inertial lifting mechanism; 3, six-step plate; 4, shell; 5, grate plate assembly; 6, partition; 7, first pipe interface; 8, second pipe interface; 9, kiln head cover; 10, air duct; 11, discharge port; 201, support block; 2011, strip hole; 202, J-shaped groove; 203, turntable; 204, column; 205, elastic support assembly; 206, first motor; 2021, horizontal part; 2051, U-shaped frame; 2052, horizontal guide rod; 205 3. Movable block; 2054. First spring; 2055. Vertical guide rod; 2056. Limit block; 2057. Second spring; 501. First cavity plate; 502. Second cavity plate; 503. Third cavity plate; 504. Slider; 505. Through hole; 506. Stop block; 507. Air outlet; 508. Fourth cavity plate; 509. Blanking opening; 901. Fixed ring; 902. Ring cover; 903. Distributing pipe; 904. Second motor; 905. Strip corrugated telescopic pipe. DETAILED DESCRIPTION

[0040] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0041] See also Figures 1 to 9 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0042] The present invention provides a technical solution: an energy-saving and low-carbon grate cooler, which is mainly composed of a support base 1, an inertial lifting mechanism 2, a six-step plate 3, a shell 4, a grate plate assembly 5, a partition 6, a first pipe interface 7, a second pipe interface 8, a kiln head cover 9, an air duct 10 and a discharge port 11.

[0043] Two support seats 1 are fixedly arranged, one high and one low. An inertial lifting mechanism 2 is installed on the support seat 1. A support block 201 of the inertial lifting mechanism 2 is fixedly installed at the bottom of the six-step plate 3. A J-shaped groove 202 is provided on the side wall of the support block 201, and a horizontal portion 2021 is provided at the bottom of the J-shaped groove 202.

[0044] The turntable 203 is rotatably connected to two symmetrically arranged columns 204 via a pin shaft, and the outer wall of the column 204 is rollingly connected to the inner wall of the J-shaped groove 202. A first motor 206 is fixedly installed on the support seat 1, and the output end of the first motor 206 is axially connected to the center of the turntable 203, thereby driving the turntable 203 to rotate.

[0045] The elastic support assembly 205 is used to elastically support the bottom and sides of the support block 201. The U-shaped frame 2051 of the elastic support assembly 205 is fixedly installed on the support seat 1, and the inner wall of the U-shaped frame 2051 is fixedly connected to the horizontal guide rod 2052, and the outer wall of the horizontal guide rod 2052 slides through the movable block 2053 and is sleeved with a first spring 2054 that is tightly pressed against the movable block 2053. The top of the movable block 2053 is fixedly connected to the vertical guide rod 2055, and the outer wall of the vertical guide rod 2055 near the top is fixedly connected to the limit block 2056. A guide hole is provided at the bottom of the support block 201, and the inner wall of the guide hole is slidably sleeved on the outer wall of the vertical guide rod 2055. A strip hole 2011 is provided on the side wall of the support block 201, and the side wall of the limit block 2056 is slidably connected to the inner wall of the strip hole 2011. The outer wall of the vertical guide rod 2055 is sleeved with a second spring 2057, and the top of the second spring 2057 is tightly pressed against the bottom of the support block 201.

[0046] The six-step plate 3 is installed on the inertial lifting mechanism 2, and six grate plate assemblies 5 are fixedly installed on the six steps. The housing 4 is fixedly connected to the top surface of the six-step plate 3.

[0047] The grate plate assembly 5 includes a first cavity plate 501, and a plurality of second cavity plates 502 in communication with the interior of the first cavity plate 501 are fixedly connected to the side wall thereof, and a third cavity plate 503 is fixedly connected to one end of the plurality of second cavity plates 502 away from the first cavity plate 501. A rectangular interface is fixedly provided on the side wall of the air duct 10, and the rectangular interface is fixedly passed through the side wall of the six-step plate 3 and in communication with the side of the first cavity plate 501. A plurality of air outlets are provided on the side wall of the second cavity plate 502 near the bottom, and a filter is provided on the inner wall of the air outlet to prevent material from entering. The inner wall of the third cavity plate 503 is slidably connected with a slider 504, the side wall of the third cavity plate 503 above the slider 504 is provided with a through hole 505 connected with the second cavity plate 502, the inner wall of the third cavity plate 503 above the through hole 505 is fixedly connected with a stopper 506 for resisting the top of the slider 504, and the side wall of the third cavity plate 503 near the top is provided with an air outlet 507. The side wall of the first cavity plate 501 is fixedly connected to the side wall at the step above the six-step plate 3, the side wall between the first cavity plate 501 and the third cavity plate 503 is fixedly connected with the fourth cavity plate 508, the top surface of the fourth cavity plate 508 is fixedly connected to the bottom of the second cavity plate 502 and is connected to each other, the fourth cavity plate 508 is provided with a blanking opening 509 near the bottom of the third cavity plate 503, the bottom of the fourth cavity plate 508 is fixedly connected to the step of the six-step plate 3, and the blanking opening 509 at the lowest step on the six-step plate 3 is connected to the discharge port 11. In addition, the first cavity plate 501, the second cavity plate 502, the third cavity plate 503 and the fourth cavity plate 508 are all made of silicon carbide ceramic material with good high temperature resistance and thermal conductivity.

[0048] The inner wall in the middle of the shell 4 is fixedly connected with a partition 6, and the bottom of the partition 6 is fixedly connected to the top of the third cavity plate 503, which is used to separate the upper and lower three grate plate assemblies 5. The top surface of the shell 4 located on both sides of the partition 6 is fixedly connected with a first pipe interface 7 and a second pipe interface 8 communicating with the interior thereof.

[0049] The kiln head cover 9 is connected to the top surface above the highest grate plate assembly 5 of the outer shell 4. The bottom of one side of the kiln head cover 9 is inclined, and a fixing ring 901 is fixedly connected to the side wall above the inclination. The outer wall of the fixing ring 901 located inside the kiln head cover 9 is rotatably sleeved with an annular cover 902, and the outer wall of the annular cover 902 located below is fixedly connected to a material distribution pipe 903 connected to the inside thereof. The side wall of the kiln head cover 9 is fixedly installed with a second motor 904 axially connected to the center of the end face of the annular cover 902, and a strip corrugated telescopic pipe 905 is connected to the bottom port of the kiln head cover 9, and the strip corrugated telescopic pipe 905 is connected to the top of the outer shell 4.

[0050] The grate cooler also includes a controller, and an electromagnetic flow control valve is installed on the air duct 10, and then the electromagnetic flow control valve is connected to the fan;

[0051] Several temperature sensors are installed on each second cavity plate 502 to detect the temperature of the material, and the temperature data can be fed back to the control;

[0052] A method for using an energy-saving low-carbon grate cooler comprises the following steps:

[0053] Step 1: The air duct 10 is connected to the fan, the kiln head cover 9 is fixedly installed, the discharge end of the rotary kiln is rotatably sleeved in the kiln head cover 9, the rotary kiln supplies clinker to the annular cover 902, the second motor 904 drives the annular cover 902 to reciprocate, and the distribution pipe 903 swings back and forth, and the clinker in the distribution pipe 903 falls evenly on the inclined surface at the bottom of the kiln head cover 9;

[0054] The first pipe interface 7 is connected to the rotary kiln, and the second pipe interface 8 is connected to the waste discharge pipe;

[0055] Step 2: the clinker slides into the strip corrugated telescopic tube 905, and then falls on the highest grate plate assembly 5, and the material is filled between a plurality of second cavity plates 502;

[0056] Step three, the initial position of the lowest column 204 is at the bottom of the J-shaped groove 202, the first motor 206 drives the turntable 203 to rotate clockwise, and the lowest column 204 rotates in the direction away from the J-shaped groove 202. At the moment when the lowest column 204 leaves the J-shaped groove 202, the highest column 204 contacts the inner wall of the J-shaped groove 202, and at the same time, under the elastic support component 205 elastically supports the bottom of the support block 201, the support block 201 is lifted upward, and at the same time, the column 204 pushes the inner wall of the J-shaped groove 202, then the six-step plate 3 and the grate plate assembly 5 are instantly lifted upward and move horizontally at the same time, and then the bottom of the J-shaped groove 202 is blocked by the column 204, and the material on the grate plate assembly 5 continues to move upward under the action of inertia, and the column 204 continues to rotate, driving the support block 201 to move downward, so that the material is lifted;

[0057] At the same time, when the six-step plate 3 and the grate plate assembly 5 are moving horizontally, the material on the grate plate assembly 5 of the previous step is relatively still due to the inertia in the horizontal direction; and then falls on the grate plate assembly 5 of the next step;

[0058] This goes back and forth alternately;

[0059] Step 4: When the material is lifted, the fan is running, and the air duct 10 supplies cold air to the grate plate assembly 5. During the lifting process, at the moment when the grate plate assembly 5 drops, the slider 504 continues to move upward under the action of inertia, and then is blocked by the block 506, thereby blocking the through hole 505; the cold air is discharged from the several air outlet holes of the second cavity plate 502, and the cold air passes through the lifted material, and the cold air absorbs heat;

[0060] When the material is not lifted, that is, when the grate plate assembly 5 is rising, the material is filled between the plurality of second cavity plates 502, and the material blocks the plurality of air outlet holes of the second cavity plate 502. The slider 504 is located at the bottom of the third cavity plate 503, and the through hole 505 is opened. The cold air passes through the second cavity plate 502 and the fourth cavity plate 508, takes away the heat absorbed by the second cavity plate 502 and the fourth cavity plate 508, and then is discharged from the air outlet 507.

[0061] The material temperature field T(x, y, t) obtained by several temperature sensors is the data obtained by discrete sampling of the temperature sensors. Assumptions: there are N sampling points in the x direction, M sampling points in the y direction, and K sampling points in time t;

[0062] Then the average temperature of the material on each grate assembly 5 is

[0063] where x i is the i-th sampling point in the x direction; y i is the jth sampling point in the y direction; t k is the sampling point at the kth time point s;

[0064] Introduced air volume distribution weight coefficient: Where T min is the lowest temperature of all grate plate areas, n is the total number of areas, then n = 6;

[0065] The air volume of the corresponding grate assembly 5 is Among them, Q T is the total air volume of the system; T A is the global average temperature; β is the correction factor, and the value range of β is 0.1~0.3;

[0066] The temperature change rate is Then the controller corrects the air volume output:

[0067] Where e(t) is the deviation between the target and actual temperature; K p , K z , K d are the proportional, integral, and differential coefficients respectively.

[0068] The output air volume command is transmitted to each electromagnetic flow control valve, through which the air volume is accurately distributed to ensure that the temperature field uniformity error is ≤2℃;

[0069] By dynamically adjusting the air volume distribution weight, excessive air supply to low-temperature areas or insufficient cooling to high-temperature areas caused by traditional fixed-ratio distribution can be avoided;

[0070] Accurately match actual demand through closed-loop feedback from the controller to reduce ineffective air volume waste;

[0071] Step 5: The high-temperature heat in the materials of the upper three steps is returned to the rotary kiln from the first pipe interface 7 along with the airflow, so that the high-temperature heat is reused to achieve the effect of energy saving and low carbon;

[0072] The low-temperature heat in the materials of the three lower steps is discharged from the second pipe interface 8 along with the air flow;

[0073] Step six, the cooled material is discharged through the discharge port 11.

[0074] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An energy-saving low-carbon grate cooler, comprising two fixed support bases (1), characterized in that: An inertial lifting mechanism (2) is installed on the support seat (1), a six-step plate (3) is installed on the inertial lifting mechanism (2), the top surface of the six-step plate (3) is fixedly connected to a shell (4), six grate plate assemblies (5) are fixedly installed on the six steps of the six-step plate (3), the ends of the grate plate assemblies (5) extend out of the steps where they are located, and are used to drop materials to the grate plate assembly (5) on the next step; a partition plate (6) is fixedly connected to the inner wall of the middle part of the shell (4), and is used to place the upper and lower three grate plate assemblies (5) on the same level. 5) for separation; the top surfaces of the shell (4) located on both sides of the partition (6) are respectively fixedly connected with a first pipe interface (7) and a second pipe interface (8) which are communicated with the interior thereof; the top surface of the shell (4) located above the highest grate plate assembly (5) is connected with a kiln head cover (9); the side wall of each step below the six-step plate (3) is fixedly installed with an air duct (10) for supplying cold air to the grate plate assembly (5); the bottom of the lowest step of the six-step plate (3) is connected with a discharge port (11); The inertial lifting mechanism (2) comprises a support block (201) fixedly mounted on the bottom of the six-step plate (3), the side wall of the support block (201) being provided with a J-shaped groove (202), and the inertial lifting mechanism (2) further comprises a turntable (203), the end surface of the turntable (203) being rotatably connected to two symmetrically arranged columns (204) via a pin, the outer wall of the column (204) being rollingly connected to the inner wall of the J-shaped groove (202); an elastic support assembly (205) for elastically supporting the bottom and sides of the support block (201) is installed below the support block (201).

2. The energy-saving low-carbon grate cooler and the method of using the same according to claim 1, characterized in that: The two support seats (1) are arranged one high and one low respectively, and a horizontal portion (2021) is arranged at the bottom of the J-shaped groove (202); a first motor (206) is fixedly mounted on the support seat (1), and an output end of the first motor (206) is axially connected to the center of the turntable (203).

3. The energy-saving low-carbon grate cooler and the method of using the same according to claim 2, characterized in that: The elastic support assembly (205) comprises a U-shaped frame (2051) fixedly mounted on the support seat (1); the inner wall of the U-shaped frame (2051) is fixedly connected to a horizontal guide rod (2052); the outer wall of the horizontal guide rod (2052) is slidably connected to a movable block (2053); the outer wall of the horizontal guide rod (2052) is sleeved with a first spring (2054) pressed against the movable block (2053); the top of the movable block (2053) is fixedly connected to a vertical guide rod (2055); the vertical guide rod (2055) A limit block (2056) is fixedly connected to the outer wall near the top, a guide hole is provided at the bottom of the support block (201), and the inner wall of the guide hole is slidably sleeved on the outer wall of the vertical guide rod (2055); a strip hole (2011) is provided on the side wall of the support block (201), the side wall of the limit block (2056) is slidably connected to the inner wall of the strip hole (2011), and a second spring (2057) is sleeved on the outer wall of the vertical guide rod (2055), and the top of the second spring (2057) is tightly pressed against the bottom of the support block (201).

4. The energy-saving low-carbon grate cooler and the method of using the same according to claim 1, characterized in that: The grate plate assembly (5) comprises a first cavity plate (501), the side wall of the first cavity plate (501) is fixedly connected to a plurality of second cavity plates (502) which are in communication with the interior thereof, the ends of the plurality of second cavity plates (502) which are away from the first cavity plate (501) are fixedly connected to a third cavity plate (503), the side wall of the air duct (10) is fixedly provided with a rectangular interface, and the rectangular interface is fixedly passed through the side wall of the six-step plate (3) and is connected to the first cavity plate (501). The side of the cavity plate (501) is connected; the side wall of the second cavity plate (502) near the bottom is provided with a plurality of air outlet holes, and the inner wall of the air outlet hole is provided with a filter to prevent material from entering; the inner wall of the third cavity plate (503) is slidably connected with a slider (504), and the side wall of the third cavity plate (503) located above the slider (504) is provided with a through hole (505) connected with the second cavity plate (502); the third cavity plate (503 ) is fixedly connected to the inner wall above the through hole (505) with a stopper (506) for resisting the top of the slider (504); the side wall of the third cavity plate (503) near the top is provided with an air outlet (507); the side wall of the first cavity plate (501) is fixedly connected to the side wall at the step above the six-step plate (3); the side wall between the first cavity plate (501) and the third cavity plate (503) is fixedly connected to the fourth cavity plate ( 508), the top surface of the fourth cavity plate (508) is fixedly connected to the bottom of the second cavity plate (502), and the two are interconnected; the fourth cavity plate (508) is provided with a blanking opening (509) near the bottom of the third cavity plate (503); the bottom of the fourth cavity plate (508) is fixedly connected to the steps of the six-step plate (3), and the blanking opening (509) at the lowest step on the six-step plate (3) is connected to the discharge port (11).

5. The energy-saving low-carbon grate cooler and the method of using the same according to claim 4, characterized in that: The bottom of the partition plate (6) is fixedly connected to the top of the third cavity plate (503); the first cavity plate (501), the second cavity plate (502), the third cavity plate (503) and the fourth cavity plate (508) are all made of silicon carbide ceramic material with good high temperature resistance and heat dissipation.

6. The energy-saving low-carbon grate cooler and the method of using the same according to claim 1, characterized in that: The bottom of one side of the kiln head cover (9) is inclined, and a fixing ring (901) is fixedly connected to the side wall above the inclination; the outer wall of the fixing ring (901) located inside the kiln head cover (9) is rotatably sleeved with an annular cover (902), and the outer wall of the annular cover (902) located below is fixedly connected to a distribution pipe (903) connected to the inside thereof; the side wall of the kiln head cover (9) is fixedly installed with a second motor (904) axially connected to the center of the end face of the annular cover (902); a strip corrugated telescopic tube (905) is connected to the bottom port of the kiln head cover (9), and the strip corrugated telescopic tube (905) is connected to the top of the outer shell (4).

7. A method for using an energy-saving low-carbon grate cooler, characterized in that: The energy-saving and low-carbon grate cooler according to any one of claims 1 to 6 comprises the following steps: Step 1: The air duct (10) is connected to the fan, the kiln head cover (9) is fixedly installed, the discharge end of the rotary kiln is rotatably sleeved in the kiln head cover (9), and the rotary kiln supplies clinker toward the kiln head cover (9); the first pipe interface (7) is connected to the rotary kiln, and the second pipe interface (8) is connected to the waste discharge pipe; Step 2: clinker falls from the kiln head cover (9) onto the highest grate assembly (5); Step 3: The initial position of the bottom column (204) is at the bottom of the J-shaped groove (202). The turntable (203) rotates, and the bottom column (204) rotates in a direction away from the J-shaped groove (202). At the moment when the bottom column (204) leaves the J-shaped groove (202), the top column (204) contacts the inner wall of the J-shaped groove (202), and at the same time, the elastic support assembly (205) elastically supports the bottom of the support block (201). Under the action of the support block (201), the support block (201) is lifted upward, and at the same time, the column (204) pushes the inner wall of the J-shaped groove (202), so that the six-step plate (3) and the grate plate assembly (5) are instantly lifted upward and move horizontally at the same time, and then the bottom of the J-shaped groove (202) is blocked by the column (204), and the material on the grate plate assembly (5) continues to move upward under the action of inertia, and the column (204) continues to rotate, driving the support block (201) to move downward, so that the material is lifted; At the same time, during the horizontal movement of the six-step plate (3) and the grate plate assembly (5), the material on the grate plate assembly (5) of the previous step becomes relatively still due to the inertia in the horizontal direction, and then falls onto the grate plate assembly (5) of the next step; This goes back and forth alternately; Step 4: When the material is lifted, the air duct (10) supplies cold air to the grate assembly (5), and the cold air passes through the lifted material, and the cold air absorbs heat; when the material is not lifted, the cold air passes through the inside of the grate assembly (5), and the grate assembly (5) absorbs heat and is then absorbed by the cold air; Step 5: The high-temperature heat in the materials on the upper three steps is returned to the rotary kiln from the first pipe interface (7) along with the airflow, so that the high-temperature heat is reused, thus achieving the effect of energy saving and low carbon. The low-temperature heat in the materials on the three lower steps is discharged from the second pipe interface (8) along with the air flow; Step six, the cooled material is discharged through the discharge port (11).

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