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

Abstract

The application discloses an energy-saving and low-carbon grate cooler and a using method thereof, which comprises two fixed support seats, an inertial lifting mechanism installed on the support seat, six-step plates installed on the inertial lifting mechanism, an outer shell fixedly connected to the top surface of the six-step plates, six grate plate assemblies fixedly installed on the six steps of the six-step plates, and the tail end of the grate plate assembly extending out of the step; an inner wall of the middle part of the outer shell is fixedly connected with a partition plate, the top surface of the outer shell above the highest grate plate assembly is connected with a kiln head cover; a sidewall of each step below the six-step plate is fixedly installed with an air pipe 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, and the application relates to the technical field of grate coolers. The application solves the problem of low cooling efficiency caused by insufficient contact between materials and cold air in the traditional grate cooler.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grate cooler, in particular to an energy-saving and low-carbon grate cooler and a using method thereof. BACKGROUND

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

[0003] The traditional grate cooler, as a commonly used cooling equipment, has exposed many problems limiting the improvement of cooling efficiency in long-term practical application. The early grate cooler has a relatively simple structure, and its grate plate is mostly fixed or only has a single reciprocating motion mode. The contact of the material with the cold air on this kind of grate plate mainly relies on natural convection, and the contact area and time are extremely limited. Studies have shown that under this condition, the effective contact area of the material with the cold air can only reach 30-40% of the theoretical maximum, resulting in that a large amount of heat cannot be taken away in time, the material cooling time is greatly prolonged, and the production efficiency is seriously affected.

[0004] Although some improved grate coolers increase the motion form of the grate plate, such as adopting step grate plate, the turning effect of the material on the grate plate is still unsatisfactory. The movement of the material on the grate plate is relatively flat, and it is difficult to achieve full scattering and lifting, so that the cold air is difficult to penetrate the material layer in all directions and at a deep level. Relevant experimental data shows that in the case of using step grate plate, the penetration depth of the cold air to the material layer can only reach 50-60% of the thickness of the material layer on average, and the heat inside a large amount of material cannot be effectively dissipated, resulting in low cooling efficiency and further restricting the improvement of production capacity.

[0005] With the continuous expansion of industrial production scale and the increasing requirement for energy saving and emission reduction, the shortcomings of the traditional grate cooler in cooling efficiency are increasingly prominent. It has become a key problem to be solved in the industry to develop an energy-saving and low-carbon grate cooler and a using method thereof. SUMMARY

[0006] In order to solve the problem of low cooling efficiency caused by insufficient contact of the material with the cold air in the traditional grate cooler, the purpose of the present application is to provide an energy-saving and low-carbon grate cooler and a using method thereof.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: an energy-saving and low-carbon grate cooler comprises 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, an outer shell is fixedly connected to the top surface of the six-step plate, six grate plate assemblies are fixedly installed on the six steps of the six-step plate, the end of the grate plate assembly extends out of the step, and is used for feeding the grate plate assembly on the next step; an inner wall of the middle part of the outer shell is fixedly connected with a partition plate for separating the upper and lower three grate plate assemblies; the top surface of the outer shell on both sides of the partition plate is fixedly connected with a first pipe joint and a second pipe joint which are in communication with the inside of the outer shell; the top surface of the outer shell above the highest grate plate assembly is connected with a kiln head cover; a sidewall of each step below the six-step plate is fixedly installed with an air pipe for supplying cold air to the grate plate assembly; and the bottom of the lowest step of the six-step plate is communicated with a discharge port.

[0008] The inertial lifting mechanism comprises a support block fixedly installed at the bottom of the six-step plate, a J-shaped groove is formed in the sidewall of the support block, the inertial lifting mechanism further comprises a rotating disc, two symmetrical column bodies are rotatably connected to the end surface of the rotating disc through a pin shaft, and the outer wall of the column body is in rolling connection with the inner wall of the J-shaped groove; an elastic supporting assembly is installed below the support block for elastically supporting the bottom and the side of the support block.

[0009] Preferably, the two support seats are arranged in high-low mode, and the bottom of the J-shaped groove is provided with a horizontal part; a first motor is fixedly installed on the support seat, and the output end of the first motor is in shaft connection with the center of the rotating disc.

[0010] Preferably, the elastic supporting assembly comprises a U-shaped frame fixedly installed on the support seat, a horizontal guide rod is fixedly connected to the inner wall of the U-shaped frame, a movable block is slidably connected to the outer wall of the horizontal guide rod, a first spring is sleeved on the outer wall of the horizontal guide rod and abuts against the movable block, a vertical guide rod is fixedly connected to the top of the movable block, a limiting block is fixedly connected to the outer wall of the vertical guide rod close to the top, a guide hole is formed in 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-shaped hole is formed in the sidewall of the support block, the sidewall of the limiting block is in sliding connection with the inner wall of the strip-shaped hole, a second spring is sleeved on the outer wall of the vertical guide rod, and the top of the second spring abuts against the bottom of the support block.

[0011] Preferably, the grate assembly comprises a first cavity plate, the side wall of the first cavity plate is fixedly connected with a plurality of second cavity plates in communication with the inside thereof, the end away from the first cavity plate of the plurality of second cavity plates is fixedly connected with a third cavity plate, the side wall of the air pipe is fixedly provided with a rectangular interface, and the rectangular interface fixedly penetrates the side wall of the six-step plate and communicates with the side of the first cavity plate; the side wall close to the bottom of the second cavity plate is provided with a plurality of air outlets, and the inner wall of the air outlet is provided with a filter screen to prevent materials from entering; the inner wall of the third cavity plate is slidably connected with a sliding block, the side wall above the third cavity plate is provided with a through hole in communication with the second cavity plate, the inner wall above the through hole of the third cavity plate is fixedly connected with a stop block for resisting the top of the sliding block, the side wall close to the top of the third cavity plate is provided with an air outlet, the side wall of the first cavity plate is fixedly connected with the side wall of the upper step of the six-step plate, the side wall between the first cavity plate and the third cavity plate is fixedly connected with a fourth cavity plate, the top surface of the fourth cavity plate is fixedly connected with the bottom of the second cavity plate and communicates with each other; the bottom of the fourth cavity plate is provided with a material falling opening close to the third cavity plate; the bottom of the fourth cavity plate is fixedly connected with the step of the six-step plate, and the material falling opening at the lowermost step of the six-step plate communicates with the discharge port.

[0012] Preferably, the bottom of the partition plate is fixedly connected with 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 cover is obliquely arranged, and the side wall above the inclined portion is fixedly penetrated with a fixing ring; the outer wall of the fixing ring located in the inside of the kiln head cover is rotatably sleeved with an annular cover, the outer wall of the annular cover located below is fixedly connected with a material distribution pipe in communication with the inside thereof, the side wall of the kiln head cover is fixedly installed with a second motor shaft-connected with the center of the end surface of the annular cover, the bottom port of the kiln head cover is connected with a strip-shaped corrugated expansion pipe, and the strip-shaped corrugated expansion pipe communicates with the top of the shell.

[0014] A use method of an energy-saving and low-carbon grate cooler, comprising the following steps:

[0015] Step one, the air pipe is connected with the fan, the kiln head cover is fixedly installed, the rotary kiln is rotatably sleeved in the kiln head cover, and the rotary kiln supplies clinker to the kiln head cover; the first pipe interface is connected with the rotary kiln, and the second pipe interface is connected with the waste discharge pipe;

[0016] Step two, the clinker falls on the grate assembly at the highest position from the kiln head cover;

[0017] Step three, the initial position of the lowermost column is at the bottom of the J-shaped groove, the rotating disc rotates, the lowermost column rotates away from the J-shaped groove, at the moment when the lowermost column is separated from the J-shaped groove, the uppermost column contacts the inner side wall of the J-shaped groove, and under the elastic support of the elastic support assembly to the bottom of the support block, the support block is lifted upwards, and the column pushes the inner side wall of the J-shaped groove, so that the six-step plate and the grate assembly are lifted upwards instantaneously, and then horizontally move, and the bottom of the J-shaped groove is blocked by the column, the material on the grate assembly moves upwards under the action of inertia, the column continues to rotate, and the support block moves downwards, so that the material is lifted;

[0018] At the same time, in the horizontal movement process of the six-step plate and the grate assembly, the material on the last step grate assembly is relatively static under the action of inertia in the horizontal direction, and then falls on the grate assembly of the next step;

[0019] Such alternating reciprocation is repeated;

[0020] Step four, when the material is lifted, the air pipe supplies cold air to the grate assembly, 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, which is then absorbed by the cold air;

[0021] Step five, the high-temperature heat in the upper three steps of material returns to the rotary kiln along with the airflow from the first pipe interface, realizing the reuse of high-temperature heat and achieving the effect of energy saving and low carbon;

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

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

[0024] Compared with the prior art, the present application has the following advantages:

[0025] 1、The present application, through the interaction of the rotating disc, the J-shaped groove and the column, and the elastic support assembly, enables the six-step plate and the grate assembly to be lifted upwards instantaneously and horizontally moved, and then the material is lifted under the action of inertia, so that the material is continuously lifted during the conveying process, greatly increasing the contact area and time of the material and the cold air, and significantly improving the cooling efficiency.

[0026] 2、The present application, by arranging six grate assemblies on the six-step plate, enables the material to be transmitted downwards between the step grate assemblies in turn, realizing stable and efficient conveying of the material, avoiding material accumulation and blockage, and ensuring the continuity of production.

[0027] 3、The present application, by the air pipe to the grate assembly supply cold wind, in the material lift and not lift in different stages, clever use of the slide block, block, via hole and the structure design of each cavity plate, realize the cold wind in different circumstances with the material or grate assembly efficient heat exchange; in the material lift, cold wind directly through the material take away heat; in the material not lift, cold wind take away the heat absorbed by the grate assembly, improve the heat exchange efficiency, further improve the energy saving effect.

[0028] 4、The present application, through the kiln head cover one side bottom inclined setting, and through the annular cover reciprocating rotation, make cloth pipe can reciprocating swing, the clinker supplied by rotary kiln evenly fall on the kiln head cover bottom inclined plane, ensure that the material in the grate cooler when the distribution is uniform, avoid local material accumulation, is beneficial to the subsequent material uniform cooling and conveying on the grate assembly, improve the consistency and stability of the whole cooling process. BRIEF DESCRIPTION OF DRAWINGS

[0029] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0030] Figure 1 It is the overall structure schematic view of the present application;

[0031] Figure 2 It is the structure schematic view of six grate assembly arrangement of the present application;

[0032] Figure 3 It is the structure schematic view of the shell of the present application;

[0033] Figure 4 It is the structure schematic view of the inertial lift mechanism front view of the present application;

[0034] Figure 5 It is the structure schematic view of the inertial lift mechanism three-dimensional of the present application;

[0035] Figure 6 It is the structure schematic view of the support block of the present application;

[0036] Figure 7 It is the structure schematic view of the grate assembly three-dimensional of the present application;

[0037] Figure 8 It is the structure schematic view of the grate assembly bottom of the present application;

[0038] Figure 9 It is the structure schematic view of the grate assembly section of the present application.

[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 pipe; 11, discharge port; 201, support block; 2011, strip-shaped hole; 202, J-shaped groove; 203, rotating disc; 204, column body; 205, elastic support assembly; 206, first motor; 2021, horizontal part; 2051, U-shaped frame; 2052, horizontal guide rod; 2053, movable block; 2054, first spring; 2055, vertical guide rod; 2056, limiting block; 2057, second spring; 501, first cavity plate; 502, second cavity plate; 503, third cavity plate; 504, sliding block; 505, via hole; 506, stop block; 507, air outlet; 508, fourth cavity plate; 509, material falling opening; 901, fixed ring; 902, annular cover; 903, cloth pipe; 904, second motor; 905, strip-shaped corrugated telescopic pipe. DETAILED DESCRIPTION

[0040] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0041] Please refer to Figures 1 to 9 It should be understood that the structure, proportion, size, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the defined conditions that the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

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

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

[0044] The rotating disc 203 is rotatably connected with two symmetrical column bodies 204 through pin shafts, and the outer wall of the column body 204 is in rolling connection with the inner wall of the J-shaped groove 202. A first motor 206 is fixedly installed on the support base 1, and the output end of the first motor 206 is in shaft connection with the center of the rotating disc 203, so as to drive the rotating disc 203 to rotate.

[0045] The elastic supporting assembly 205 is used for elastically supporting the bottom and the side of the support block 201. The U-shaped frame 2051 of the elastic supporting assembly 205 is fixedly installed on the support base 1, the inner wall of the U-shaped frame 2051 is fixedly connected with the horizontal guide rod 2052, the outer wall of the horizontal guide rod 2052 is slidably connected with the movable block 2053, and the horizontal guide rod 2052 is sleeved with the first spring 2054 abutting against the movable block 2053. The top of the movable block 2053 is fixedly connected with the vertical guide rod 2055, and the outer wall of the vertical guide rod 2055 close to the top is fixedly connected with the limiting block 2056. The bottom of the support block 201 is provided with a guide hole, the inner wall of the guide hole is slidably sleeved with the outer wall of the vertical guide rod 2055, the side wall of the support block 201 is provided with a strip-shaped hole 2011, the side wall of the limiting block 2056 is in sliding connection with the inner wall of the strip-shaped hole 2011, the outer wall of the vertical guide rod 2055 is sleeved with the second spring 2057, and the top of the second spring 2057 is abutting against the bottom of the support block 201.

[0046] Six ladder plates 3 are installed on the inertia lifting mechanism 2, and six grate plate assemblies 5 are fixedly installed on the six ladders of the six ladder plates 3. The shell 4 is fixedly connected with the top surface of the six ladder plates 3.

[0047] The grate plate assembly 5 comprises a first cavity plate 501, the side wall of the first cavity plate 501 is fixedly connected with a plurality of second cavity plates 502 which are in communication with the inside of the first cavity plate 501, and the end of the plurality of second cavity plates 502 away from the first cavity plate 501 is fixedly connected with a third cavity plate 503. The side wall of the air pipe 10 is fixedly provided with a rectangular interface, the rectangular interface is fixedly penetrated through the side wall of the six-step plate 3 and is in communication with the side of the first cavity plate 501. The side wall close to the bottom of the second cavity plate 502 is provided with a plurality of air outlet holes, and the inner wall of the air outlet hole is provided with a filter screen to prevent materials from entering. The inner wall of the third cavity plate 503 is slidably connected with a sliding block 504, the side wall above the sliding block 504 of the third cavity plate 503 is provided with a through hole 505 which is in communication with the second cavity plate 502, the inner wall above the through hole 505 of the third cavity plate 503 is fixedly connected with a stop block 506 for resisting the top of the sliding block 504, and the side wall close to the top of the third cavity plate 503 is provided with an air outlet 507. The side wall of the first cavity plate 501 is fixedly connected with the side wall of the upper step of the six-step plate 3, the side wall between the first cavity plate 501 and the third cavity plate 503 is fixedly connected with a fourth cavity plate 508, the top surface of the fourth cavity plate 508 is fixedly connected with the bottom of the second cavity plate 502 and is in communication with each other, the bottom close to the third cavity plate 503 of the fourth cavity plate 508 is provided with a material dropping opening 509, the bottom of the fourth cavity plate 508 is fixedly connected with the step of the six-step plate 3, and the material dropping opening 509 at the lowermost step of the six-step plate 3 is in communication with the discharge port 11. Furthermore, 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 which has good high-temperature resistance and heat conduction.

[0048] The inner wall of the middle part of the shell 4 is fixedly connected with a partition plate 6, the bottom of the partition plate 6 is fixedly connected with the top of the third cavity plate 503 for separating the three grate plate assemblies 5 above and below. The top of the shell 4 on both sides of the partition plate 6 is fixedly connected with a first pipe interface 7 and a second pipe interface 8 which are in communication with the inside thereof.

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

[0050] The grate cooler further comprises a controller, and an electromagnetic flow control valve is further installed on the air pipe 10, and then the electromagnetic flow control valve is connected with the fan;

[0051] Each second cavity plate 502 is provided with a plurality of temperature sensors for detecting the temperature of the material, and the temperature data can be fed back to the control;

[0052] A method for using the energy-saving and low-carbon grate cooler, comprising the following steps:

[0053] Step one, the air pipe 10 is connected with the fan, the kiln head cover 9 is fixedly installed, the rotary kiln discharge end rotating sleeve is connected in the kiln head cover 9, the rotary kiln is towards the annular cover 902 to supply the clinker, the second motor 904 drives the annular cover 902 to reciprocating rotation, then the cloth pipe 903 reciprocating swings, the clinker in the cloth pipe 903 is evenly fallen on the inclined plane of the kiln head cover 9 bottom;

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

[0055] Step two, the clinker slides into the strip-shaped corrugated telescopic pipe 905, and then falls on the grate plate assembly 5 at the highest position, and the material is filled between the plurality of second cavity plates 502;

[0056] Step three, the initial position of the lowermost column body 204 is at the bottom of the J-shaped groove 202, the first motor 206 drives the rotating disc 203 to rotate clockwise, the lowermost column body 204 rotates away from the J-shaped groove 202, at the moment when the lowermost column body 204 is separated from the J-shaped groove 202, the uppermost column body 204 contacts the inner side wall of the J-shaped groove 202, and at the same time, the support block 201 is lifted up under the elastic support of the elastic support assembly 205, and the column body 204 pushes the inner side wall of the J-shaped groove 202, so that the six-step ladder plate 3 and the grate plate assembly 5 are lifted up and horizontally moved at the same time, then the bottom of the J-shaped groove 202 is blocked by the column body 204, the material on the grate plate assembly 5 is moved upward under the action of inertia, the column body 204 continues to rotate, and the support block 201 is driven to move downward, so that the material is lifted up;

[0057] At the same time, in the process of horizontal movement of the six-step ladder plate 3 and the grate plate assembly 5, the material on the last step grate plate assembly 5 is relatively static under the action of inertia in the horizontal direction, and then falls on the next step grate plate assembly 5;

[0058] The above steps are alternately repeated;

[0059] Step four, when the material is lifted up, the fan operates, the air pipe 10 supplies cold air to the grate plate assembly 5, at the moment when the grate plate assembly 5 falls, the sliding block 504 continues to move upward under the action of inertia, and then is blocked by the block 506, so as to block the through hole 505; the cold air is discharged from the plurality of air outlets of the second cavity plate 502, the cold air passes through the lifted material, and the cold air absorbs heat;

[0060] When the material is not lifted, that is, during the lifting of the grate plate assembly 5, the material fills between the second cavity plates 502, the material blocks the air outlet holes of the second cavity plates 502, the sliding block 504 is located at the bottom of the third cavity plate 503, 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 the plurality of temperature sensors is obtained by discrete sampling data of the temperature sensors. It is assumed that there are N sampling points in the x direction, M sampling points in the y direction, and K sampling points in time t;

[0062] The average value of the material temperature on each grate plate assembly 5 is

[0063] Where x i is the i-th x-direction sampling point; y i is the j-th y-direction sampling point; and t k is the k-th s-time point sampling point;

[0064] A wind volume distribution weight coefficient is introduced: Where T min is the lowest temperature of all grate plate regions, and n is the total number of regions, so n = 6;

[0065] The wind volume of the corresponding grate plate assembly 5 is Where Q T is the total wind volume of the system; T A is the global temperature; and β is a correction factor, and β is in the range of 0.1-0.3;

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

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

[0068] The output wind volume instruction is transmitted to each electromagnetic flow control valve, and through the electromagnetic flow control valve, accurate distribution of the wind volume is realized, and the temperature field uniformity error is ensured to be ≤2℃;

[0069] By dynamically adjusting the wind volume distribution weight, overcooling of the low-temperature region or insufficient cooling of the high-temperature region caused by traditional fixed proportional distribution is avoided;

[0070] By controller closed-loop feedback precise matching of actual demand, waste of invalid wind volume is reduced;

[0071] Step five, the high temperature heat in the upper three steps of material is taken back to the rotary kiln from the first pipe interface 7 with the airflow, realizing the reuse of high temperature heat, achieving the effect of energy saving and low carbon;

[0072] The low temperature heat in the lower three steps of material is discharged from the second pipe interface 8 with the airflow;

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

[0074] The above examples only illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above examples without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. An energy-saving and low-carbon grate cooler, comprising two fixed support seats (1), characterized in that: The support seat (1) is provided with an inertial lifting mechanism (2), the inertial lifting mechanism (2) is provided with six stepped plates (3), the top surface of the six stepped plates (3) is fixedly connected with a shell (4), six grate plate assemblies (5) are fixedly installed on the six steps of the six stepped plates (3), the end of the grate plate assembly (5) extends out of the step, and the grate plate assembly (5) is used for feeding the grate plate assembly (5) on the next step; the inner wall of the middle part of the shell (4) is fixedly connected with a partition plate (6) for separating the upper and lower three grate plate assemblies (5); the top surface of the shell (4) on both sides of the partition plate (6) is fixedly connected with a first pipe joint (7) and a second pipe joint (8) in communication with the inside thereof, respectively; the top surface of the shell (4) above the highest one of the grate plate assemblies (5) is connected with a kiln head cover (9); the sidewall of each step below the six stepped plates (3) is fixedly installed with an air pipe (10) for supplying cold air to the grate plate assembly (5); the bottom of the lowest step of the six stepped plates (3) is communicated with a discharge port (11); The inertial lifting mechanism (2) comprises a support block (201) fixedly installed at the bottom of the six stepped plates (3), the sidewall of the support block (201) is provided with a J-shaped groove (202), and the inertial lifting mechanism (2) further comprises a rotating disc (203), the end surface of the rotating disc (203) is rotatably connected with two column bodies (204) symmetrically through a pin shaft, and the outer wall of the column body (204) is in rolling connection with the inner wall of the J-shaped groove (202); the bottom and the side of the support block (201) are elastically supported by an elastic supporting assembly (205) installed below the support block (201); The two support seats (1) are arranged in a high-low mode, respectively, and the bottom of the J-shaped groove (202) is provided with a horizontal part (2021); the support seat (1) is fixedly installed with a first motor (206), and the output end of the first motor (206) is in shaft connection with the center of the rotating disc (203); The elastic support assembly (205) comprises a U-shaped frame (2051) fixedly installed on the support base (1), the inner wall of the U-shaped frame (2051) is fixedly connected with a horizontal guide rod (2052), the outer wall of the horizontal guide rod (2052) is slidably connected with a movable block (2053), the outer wall of the horizontal guide rod (2052) is sleeved with a first spring (2054) abutting against the movable block (2053), the top of the movable block (2053) is fixedly connected with a vertical guide rod (2055), the outer wall of the vertical guide rod (2055) close to the top is fixedly connected with a limiting block (2056), the bottom of the support block (201) is provided with a guide hole, and the inner wall of the guide hole is slidably connected with the outer wall of the vertical guide rod (2055); the side wall of the support block (201) is provided with a strip-shaped hole (2011), the side wall of the limiting block (2056) is slidably connected with the inner wall of the strip-shaped 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) abuts against the bottom of the support block (201).

2. The energy saving low carbon grate cooler as claimed in claim 1, wherein: The grate plate assembly (5) comprises a first cavity plate (501), the side wall of the first cavity plate (501) is fixedly connected with a plurality of second cavity plates (502) in communication with the inside thereof, the ends, away from the first cavity plate (501), of the plurality of second cavity plates (502) are fixedly connected with third cavity plates (503), the side wall of the air pipe (10) is fixedly provided with a rectangular interface, and the rectangular interface fixedly penetrates the side wall of the six-step plate (3) and is in communication with the side of the first cavity plate (501); a plurality of air outlet holes are formed in the side wall of the second cavity plate (502) close to the bottom, and a filter screen is arranged on the inner wall of the air outlet hole to prevent materials from entering; the inner wall of the third cavity plate (503) is slidably connected with a sliding block (504), the side wall of the third cavity plate (503) above the sliding block (504) is provided with a through hole (505) in communication 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 stop block (506) for abutting against the top of the sliding block (504), the side wall of the third cavity plate (503) close to the top is provided with an air outlet (507), the side wall of the first cavity plate (501) is fixedly connected with the side wall of the upper step of the six-step plate (3), the side walls between the first cavity plate (501) and the third cavity plate (503) are fixedly connected with a fourth cavity plate (508), the top surface of the fourth cavity plate (508) is fixedly connected with the bottom of the second cavity plate (502) and is in communication with each other, and the bottom of the fourth cavity plate (508) is provided with a material falling opening (509) close to the bottom of the third cavity plate (503); the bottom of the fourth cavity plate (508) is fixedly connected with the steps of the six-step plate (3), and the material falling opening (509) at the lowermost step of the six-step plate (3) is in communication with the material discharge port (11).

3. The energy saving low carbon grate cooler as claimed in claim 2, wherein: The bottom of the partition plate (6) is fixedly connected with 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 made of silicon carbide ceramic material which has good high-temperature resistance and heat dissipation.

4. The energy saving low carbon grate cooler as claimed in claim 1, wherein: The bottom of one side of the kiln head cover (9) is obliquely arranged, and a fixing ring (901) is fixedly penetrated on the side wall above the inclined portion; the outer wall of the fixing ring (901) in the interior of the kiln head cover (9) is rotatably sleeved with an annular cover (902), the outer wall below the annular cover (902) is fixedly connected with a cloth pipe (903) in communication with the interior thereof, the side wall of the kiln head cover (9) is fixedly installed with a second motor (904) in shaft connection with the end face center of the annular cover (902), the bottom port of the kiln head cover (9) is connected with a strip-shaped corrugated telescopic pipe (905), and the strip-shaped corrugated telescopic pipe (905) is in communication with the top of the shell (4).

5. A method for using an energy-saving low-carbon grate cooler, characterized in that, The energy-saving low-carbon grate cooler comprises the following steps: Step one, the air pipe (10) is connected with the fan, the kiln head cover (9) is fixedly installed, the rotary kiln is rotatably sleeved in the kiln head cover (9), and the rotary kiln is used for feeding clinker into the kiln head cover (9); the first pipe joint (7) is connected with the rotary kiln, and the second pipe joint (8) is connected with the waste pipe; Step two, the clinker falls on the grate plate assembly (5) at the highest position from the kiln head cover (9); Step three, the initial position of the lowermost column (204) is at the bottom of the J-shaped groove (202), the rotating disc (203) rotates, the lowermost column (204) rotates away from the J-shaped groove (202), the uppermost column (204) contacts the inner side wall of the J-shaped groove (202) at the moment when the lowermost column (204) is separated from the J-shaped groove (202), the support block (201) is lifted up under the elastic support of the elastic support assembly (205) on the bottom of the support block (201), the column (204) pushes the inner side wall of the J-shaped groove (202), the six-step plate (3) and the grate plate assembly (5) are instantaneously lifted up and horizontally moved, then the bottom of the J-shaped groove (202) is blocked by the column (204), the material on the grate plate assembly (5) continues to move upward under the action of inertia, the column (204) continues to rotate and drives the support block (201) to move downward, and then the material is lifted up; Meanwhile, the material on the last-step grate plate assembly (5) is relatively static under the action of inertia in the horizontal direction during the horizontal movement of the six-step plate (3) and the grate plate assembly (5), and then falls on the next-step grate plate assembly (5); Such alternation is repeated; Step four, when the material is lifted up, the air pipe (10) supplies cold air into the grate plate assembly (5), the cold air passes through the lifted material and absorbs heat, when the material is not lifted up, the cold air passes through the interior of the grate plate assembly (5), the grate plate assembly (5) absorbs heat, and then the heat is absorbed by the cold air. Step five, high temperature heat in the upper three steps of material is taken back to the rotary kiln from the first pipe interface (7) with the airflow, realizing the reuse of high temperature heat, achieving the effect of energy saving and low carbon; Low temperature heat in the lower three steps of material is discharged from the second pipe interface (8) with the airflow; Step six, the cooled material is discharged through the discharge port (11).

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