Efficient heat exchange grate cooler

Abstract

The utility model provides an efficient heat exchange grate cooler, and relates to the field of building material machinery, the efficient heat exchange grate cooler comprises a grate plate used for pushing clinker to move; the grate bed is arranged at the bottom of the grate plate and is used for supporting the grate plate; the plurality of hydraulic transmission devices are arranged at the bottom of the grate bed and are used for controlling the movement of the grate plate; the plurality of grate bed supporting devices are arranged between every two adjacent hydraulic transmission devices and are used for supporting the grate beds; the upper shell is arranged at the top of the grid plate and is used for preventing the hot air from dissipating; the cooling fan unit is arranged on one side of the grate bed; the cooling device is used for providing cooling air for clinker cooling. According to the clinker cooling device, the nozzle plate and the nozzles are arranged, the nozzles are driven to be inserted into a clinker layer through downward pressing of the hydraulic rod, cooling air passes through the nozzle plate and is sprayed out of the nozzles, uniform cooling of the clinker layer is achieved, clinker cooling is fast, and the problem that clinker cooling is not uniform in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of building materials machinery, and more specifically, to a high-efficiency heat exchange grate cooler. Background Technology

[0002] The grate cooler is an important main equipment in the clinker calcination system of a cement plant. Its main function is to cool and transport cement clinker.

[0003] Traditional grate coolers typically use cooling air to cool the clinker layer through gaps at the bottom of the grate. However, this method has low cooling efficiency and cannot completely cover the clinker at the top of the layer, resulting in uneven cooling and the "red river" phenomenon. The "red river" phenomenon refers to the phenomenon where localized high-temperature clinker remains uncooled when the clinker is unevenly distributed, reducing the grindability of the cement.

[0004] Therefore, we have made improvements to this and proposed a grate cooler with high-efficiency heat exchange. Utility Model Content

[0005] The purpose of this invention is to solve the existing problems of low and uneven clinker cooling efficiency.

[0006] In order to achieve the above-mentioned objectives and improve the above-mentioned problems, this utility model provides a high-efficiency heat exchange grate cooler, including a grate plate for pushing clinker to move;

[0007] A grate bed, which is disposed at the bottom of a grate plate and is used to support the grate plate;

[0008] Several hydraulic transmission devices are disposed at the bottom of the grate bed to control the movement of the grate plates;

[0009] A plurality of grate bed support devices are arranged between two adjacent hydraulic transmission devices for supporting the grate bed;

[0010] The upper outer shell is disposed on the top of the grate plate and is used to guide the flow of hot air;

[0011] A cooling fan unit is installed on one side of the grate bed; it is used to provide cooling air to cool the clinker.

[0012] Several protective plates are disposed on both sides of the bottom of the grate bed to cover the hydraulic transmission device and the grate bed support device at the bottom of the grate bed.

[0013] As a preferred technical solution of this application, the grate includes a support plate, a ventilation hole is provided on the support plate, baffles are fixed on both sides of the support plate, and a clinker guide slope is provided at the rear end of the support plate.

[0014] As a preferred technical solution of this application, the top of the grate is provided with three cooling enhancement devices.

[0015] As a preferred technical solution of this application, the three cooling enhancement devices include three nozzle plates, each of the three nozzle plates having a No. 1 air inlet on the same side, the three nozzle plates having multiple No. 2 ventilation holes, and several No. 1 hydraulic rods at the lower ends of both sides of the three nozzle plates, with the two ends of the several No. 1 hydraulic rods respectively fixedly connected to the nozzle plates and the two sides.

[0016] As a preferred technical solution of this application, multiple cooling pipes extend longitudinally from the No. 1 air inlet into the nozzle plate, and multiple nozzles are fixedly installed through the nozzle plate downwards.

[0017] As a preferred technical solution of this application, a base plate is provided below the support plate, the base plate is fixedly connected to the baffle, and a second cavity is formed between the base plate, the baffle and the support plate. Three second air inlets are provided on the baffle located on the same side as the first air inlet.

[0018] As a preferred technical solution of this application, the hydraulic transmission device includes a second hydraulic rod fixedly connected to the base plate, a fixed column fixedly connected to the telescopic end of the second hydraulic rod, and movable grooves provided on both the base plate and the support plate. The top end of the fixed column passes through the movable grooves on the base plate and the support plate and is fixedly connected to the grate.

[0019] As a preferred technical solution of this application, the grate support device includes a support column, a No. 3 hydraulic rod is fixedly connected to the top of the support column, a pad is fixedly connected to the top of the telescopic end of the No. 3 hydraulic rod, and the pad is fixedly connected to the bottom of the base plate.

[0020] As a preferred technical solution of this application, the cooling fan unit includes a cold air fan, one side of which is connected to a duct, and one end of the duct is connected to two cold air outlets, which are respectively connected to a first air inlet and a second air inlet.

[0021] As a preferred technical solution of this application, three air outlets are provided on one side of the upper shell, and an exhaust fan is fixedly connected inside the three air outlets.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] In the scheme of this application:

[0024] By using a cooling enhancement device, the first hydraulic rod retracts the telescopic rod, which drives the nozzle to be inserted into the clinker layer. Cooling air is sprayed out from the nozzle through the nozzle plate, achieving uniform cooling of the clinker layer and rapid cooling of the clinker, thus solving the problem of uneven clinker cooling in the prior art. Attached Figure Description

[0025] Figure 1 A schematic diagram of a high-efficiency heat exchange grate cooler provided in this application;

[0026] Figure 2 A split schematic diagram of a high-efficiency heat exchange grate cooler provided in this application;

[0027] Figure 3 A schematic diagram of the grate bed in a high-efficiency heat exchange grate cooler provided in this application;

[0028] Figure 4 A top view of the support plate in a high-efficiency heat exchange grate cooler provided in this application;

[0029] Figure 5 A front cross-sectional structural schematic diagram of a cooling enhancement device in a high-efficiency heat exchange grate cooler provided in this application;

[0030] Figure 6 A side view sectional view of the hydraulic transmission device in a high-efficiency heat exchange grate cooler provided in this application;

[0031] Figure 7 A side cross-sectional view of the grate bed support device in a high-efficiency heat exchange grate cooler provided in this application;

[0032] Figure 8 A schematic diagram of the cooling fan unit in a high-efficiency heat exchange grate cooler provided in this application;

[0033] Figure 9 A schematic diagram showing the positional relationship between the hydraulic transmission device and the grate support device in a high-efficiency heat exchange grate cooler provided in this application;

[0034] Figure 10 This application provides a top sectional view of a cooling enhancement device in a high-efficiency heat exchange grate cooler;

[0035] The image shows:

[0036] 1. Grate bed; 101. Support plate; 102. Ventilation hole No. 1; 103. Baffle; 104. Clinker guide slope; 105. Bottom plate; 106. Cavity; 107. Air inlet No. 2;

[0037] 2. Grille;

[0038] 3. Hydraulic transmission device; 301. No. 2 hydraulic rod; 302. Fixed column; 303. Movable groove;

[0039] 4. Grate support device; 401. Support column; 402. Hydraulic rod No. 3; 403. Pad block;

[0040] 5. Upper casing; 501. Air outlet;

[0041] 6. Cooling fan unit; 601. Duct; 602. Air cooler; 603. Air outlet;

[0042] 7. Protective panels;

[0043] 8. Cooling enhancement device; 801. Nozzle plate; 802. No. 1 air inlet; 803. No. 2 ventilation hole; 804. Cooling pipe; 805. No. 1 nozzle; 806. No. 1 hydraulic rod.

[0044] 9. Clinker crusher. Detailed Implementation

[0045] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0046] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0047] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] Example

[0050] Please refer to Figure 2 , Figure 3 and Figure 9 A high-efficiency heat exchange grate cooler includes a grate plate 2 for moving clinker;

[0051] A grate bed 1 is located at the bottom of a grate plate 2 and is used to support the grate plate 2.

[0052] Several hydraulic transmission devices 3 are installed at the bottom of the grate bed 1 to control the movement of the grate plate 2;

[0053] Several grate support devices 4 are arranged between two adjacent hydraulic transmission devices 3 to support the grate 1;

[0054] The upper outer shell 5 is located on top of the grate plate 2 and is used to guide the flow of hot air;

[0055] Cooling fan unit 6 is located on one side of the grate bed 1; it is used to provide cooling air to cool the clinker.

[0056] Several protective plates 7 are set on both sides of the bottom of the grate bed 1 to cover the hydraulic transmission device 3 and the grate bed support device 4 at the bottom of the grate bed 1.

[0057] Furthermore, such as Figure 3 , Figure 4 and Figure 6 As shown, the grate 1 includes a support plate 101, a ventilation hole 102 is provided on the support plate 101, baffles 103 are fixed on both sides of the support plate 101, and a clinker guide slope 104 is provided at the rear end of the support plate 101 to allow the clinker to move more evenly onto the grate 2 through the inclined surface.

[0058] Furthermore, such as Figure 3 , Figure 5 and Figure 10 As shown, the top of the grate 2 is equipped with three cooling enhancement devices 8 to enhance the cooling efficiency of the clinker.

[0059] Furthermore, such as 3, Figure 5 and Figure 10 As shown, the three cooling enhancement devices 8 include three nozzle plates 801. Each of the three nozzle plates 801 has a first air inlet 802 on the same side. Each of the three nozzle plates 801 has multiple second ventilation holes 803. Several first hydraulic rods 806 are provided at the lower ends of both sides of the three nozzle plates 801. The two ends of the several first hydraulic rods 806 are fixedly connected to the nozzle plates 801 and both sides respectively, and are used to retract the extension end of the first hydraulic rods 806 to drive the nozzles 801 to press against the clinker.

[0060] Furthermore, such as 3, Figure 5 , Figure 7 and Figure 10 As shown, multiple cooling pipes 804 extend longitudinally from the No. 1 air inlet 802 into the nozzle plate 801. Multiple nozzles 805 are fixedly installed through the nozzle plate 801. After the nozzle plate presses against the clinker, the nozzles 805 insert into the clinker layer and spray cooling air to cool the clinker evenly.

[0061] Furthermore, such as Figure 2 , Figure 3 and Figure 7As shown, a base plate 105 is provided below the support plate 101. The base plate 105 is fixedly connected to the baffle 103. A second cavity 106 is formed between the base plate 105, the baffle 103, and the support plate 101. Three second air inlets 107 are provided on the baffle 103 on the same side as the first air inlet 802. Cooling air enters the cavity 106 from the second air inlets 107 and is then blown out from the first ventilation hole 102.

[0062] Furthermore, such as Figure 3 , Figure 6 and Figure 9 As shown, the hydraulic transmission device 3 includes a second hydraulic rod 301 fixedly connected to the base plate 105. The telescopic end of the second hydraulic rod 301 is fixedly connected to a fixed column 302. Movable grooves 303 are provided on both the base plate 105 and the support plate 101. The top end of the fixed column 302 passes through the movable grooves 303 on the base plate 105 and the support plate 101 and is fixedly connected to the grate plate 2. The second hydraulic rod 301 telescopically drives the fixed column 302 to move back and forth, thereby moving the grate plate 2 back and forth and driving the clinker to move.

[0063] Furthermore, such as Figure 2 , Figure 7 and Figure 9 As shown, the grate support device 4 includes a support column 401. A third hydraulic rod 402 is fixedly connected to the top of the support column 401. A pad 403 is fixedly connected to the top of the telescopic end of the third hydraulic rod 402. The pad 403 is fixedly connected to the bottom of the base plate 105 and is used to support the grate 1 through the third hydraulic rod 402.

[0064] Furthermore, such as Figure 2 and Figure 8 As shown, the cooling fan unit 6 includes a cooler 602. A duct 601 is connected to one side of the cooler 602. One end of the duct 601 is connected to two cold air outlets 603. The two cold air outlets 603 are respectively connected to the first air inlet 802 and the second air inlet 107, so that the cooler 602 generates cooling air which is blown into the duct 601 and blown into the first air inlet 802 and the second air inlet 107 through the two cold air outlets 603, and then into the cooling pipe 804 and the cavity 106.

[0065] Furthermore, such as Figure 2 As shown, an air outlet 501 is provided on one side of the upper outer shell 5. An exhaust fan is fixedly connected inside the air outlet 501, which is used to draw out hot air through the air outlet 501 and discharge it.

[0066] Furthermore, such as Figure 1 and Figure 2 As shown, the front end of the grate 1 is equipped with a clinker crusher 9, which is used to receive the clinker moving from the grate 2 and crush and transport it away.

[0067] The usage process of the high-efficiency heat exchange grate cooler provided by this utility model is as follows:

[0068] Clinker is poured into clinker guide slope 104, where it rolls onto grate plate 2. The grate plate 2 moves back and forth via the extension and retraction of hydraulic rod 301. As the grate plate 2 moves forward, it pulls the clinker forward as well. Cooling air unit 6 continuously generates cooling air, which is then diverted through duct 601 and two cold air outlets 603, entering cooling pipe 804 and cavity 106 respectively. Cooling air from inside cooling pipe 804 is ejected from 805, and cooling air from inside cavity 106 is ejected upwards from ventilation hole 102, cooling the clinker. As grate plate 2 moves backward, clinker continues to roll down from clinker guide slope 104. The clinker blocks the clinker from rolling down, preventing it from moving backward. As the clinker moves forward, the second hydraulic rod 301 retracts, causing the nozzle plate 801 to press down, so that the nozzle 805 is inserted into the clinker layer, spraying out cooling air to further cool the clinker. The hot air generated by the cooling is drawn into the air outlet through the exhaust fan in the air outlet 501, driving the airflow. The air outlets 501 located at the rear and middle are connected to the boiler, and the hot air is used to reheat the boiler. The air outlet at the front is connected to the thermal power generation equipment for power generation. The cooled clinker continues to be carried out by the back and forth movement of the grate plate 2 and fed into the clinker crusher 9 for crushing, and then carried out by the transmission belt at the bottom of the clinker crusher 9.

[0069] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A high-efficiency heat exchange grate cooler, comprising: The grate (2) is used to move the clinker. A grate bed (1) is located at the bottom of a grate plate (2) and is used to support the grate plate (2). Several hydraulic transmission devices (3) are provided at the bottom of the grate bed (1) to control the movement of the grate plate (2); A plurality of grate bed support devices (4) are arranged between two adjacent hydraulic transmission devices (3) for supporting the grate bed (1). Upper outer shell (5), which is disposed on the top of the grate (2) and is used to guide the flow of hot air; Cooling fan unit (6), the cooling fan unit (6) is located on one side of the grate (1); used to provide cooling air to cool the clinker; Several protective plates (7) are provided on both sides of the bottom of the grate bed (1) to cover the hydraulic transmission device (3) and the grate bed support device (4) at the bottom of the grate bed (1).

2. The high-efficiency heat exchange grate cooler according to claim 1, characterized in that, The grate bed (1) includes a support plate (101), a ventilation hole (102) is provided on the support plate (101), baffles (103) are fixed on both sides of the support plate (101), and a clinker guide slope (104) is provided at the rear end of the support plate (101).

3. The high-efficiency heat exchange grate cooler according to claim 2, characterized in that, The top of the grate (2) is provided with three cooling enhancement devices (8).

4. The high-efficiency heat exchange grate cooler according to claim 3, characterized in that, The three cooling enhancement devices (8) include three nozzle plates (801), each of the three nozzle plates (801) has a first air inlet (802) on the same side, and each of the three nozzle plates (801) has a plurality of second ventilation holes (803). The lower ends of both sides of the three nozzle plates (801) are provided with a plurality of first hydraulic rods (806), and the two ends of the plurality of first hydraulic rods (806) are fixedly connected to the nozzle plates (801) and the two sides respectively.

5. A high-efficiency heat exchange grate cooler according to claim 4, characterized in that, Multiple cooling pipes (804) extend longitudinally from the No. 1 air inlet (802) into the nozzle plate (801), and multiple nozzles (805) are fixedly installed on the cooling pipes (804) passing downward through the nozzle plate (801).

6. A high-efficiency heat exchange grate cooler according to claim 4, characterized in that, A base plate (105) is provided below the support plate (101). The base plate (105) is fixedly connected to the baffle (103). A second cavity (106) is formed between the base plate (105), the baffle (103), and the support plate (101). Three second air inlets (107) are provided on the baffle (103) on the same side as the first air inlet (802).

7. A high-efficiency heat exchange grate cooler according to claim 1, characterized in that, The hydraulic transmission device (3) includes a second hydraulic rod (301) fixedly connected to the base plate (105). The telescopic end of the second hydraulic rod (301) is fixedly connected to a fixed column (302). Movable grooves (303) are provided on both the base plate (105) and the support plate (101). The top of the fixed column (302) passes through the movable grooves (303) on the base plate (105) and the support plate (101) and is fixedly connected to the grate plate (2).

8. A high-efficiency heat exchange grate cooler according to claim 1, characterized in that, The grate support device (4) includes a support column (401), the top end of the support column (401) is fixedly connected to a third hydraulic rod (402), the top end of the telescopic end of the third hydraulic rod (402) is fixedly connected to a pad (403), and the pad (403) is fixedly connected to the bottom of the base plate (105).

9. A high-efficiency heat exchange grate cooler according to claim 1, characterized in that, The cooling fan unit (6) includes a cold air fan (602). A duct (601) is connected to one side of the cold air fan (602). One end of the duct (601) is connected to two cold air outlets (603). The two cold air outlets (603) are respectively connected to the first air inlet (802) and the second air inlet (107).

10. A high-efficiency heat exchange grate cooler according to claim 1, characterized in that, The upper outer shell (5) has three air outlets (501) on one side, and an exhaust fan is fixedly connected inside the three air outlets (501).

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