Air inlet valve port of grate cooler

Abstract

The utility model discloses a grate cooler air inlet valve port which comprises an air inlet shell, an air inlet and an air outlet are formed in the air inlet shell, a rotary adjusting mechanism used for adjusting the air inlet area is arranged at the air inlet, and the rotary adjusting mechanism comprises air inlet baffles symmetrically arranged relative to the air inlet. The air inlet baffle and the air inlet shell are connected in a rotating fit mode through a rotating rod, and the air inlet area of the air inlet is adjusted by controlling the rotating angle of the air inlet baffle. According to the grate cooler, the mode that the two baffles are synchronously opened and closed is adopted, the air inlet amount can be easily controlled, the working condition of the grate cooler during working is effectively stabilized, it can be guaranteed that the positions of the baffles are stable, installation is convenient, and the problem that a large amount of time is wasted due to the fact that an air adjusting device is independently installed on an existing grate cooler is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement clinker production equipment, in particular to an air inlet valve port of a grate cooler. Background Art

[0002] The main function of the grate cooler is to provide an appropriate clinker cooling rate to improve the quality of cement and the grindability of clinker. After the clinker is rapidly cooled, it does not have time to complete crystallization, and part of it is in a glass phase. Even if the other part crystallizes, the grains are finer than those obtained by ordinary cooling speed. This kind of clinker can be made into cement with a higher grade. At the same time, thermal stress and cracks will be generated in the particles of the clinker after rapid cooling, making it easier to grind.

[0003] Generally, the air inlet of the grate plate is equipped with an air volume regulating device separately, and the opening size is adjusted by a knob. The adjustment time is long and the air inlet area at the air inlet is occupied, resulting in poor ventilation of cold air at the air inlet and suboptimal cooling efficiency for cement clinker. Utility Model Content

[0004] Technical purpose: In view of the deficiencies in the air volume adjustment at the air inlet of the above-mentioned existing grate cooler, the utility model discloses a grate cooler air inlet valve which can quickly and flexibly adjust the air volume of the grate cooler and ensure smooth air intake.

[0005] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0006] A grate cooler air inlet valve port comprises an air inlet housing, on which an air inlet and an air outlet are arranged, and a rotary adjustment mechanism for adjusting the air inlet area is arranged at the air inlet, the rotary adjustment mechanism comprises an air inlet baffle symmetrically arranged about the air inlet, the air inlet baffle is rotatably connected to the air inlet housing via a rotary rod, and the air inlet area of ​​the air inlet is adjusted by controlling the rotation angle of the air inlet baffle.

[0007] Preferably, a rotation damper is provided between the end of the rotating rod of the utility model and the air inlet housing, and the rotation damper is used to ensure that the angle of the air inlet baffle is stable.

[0008] Preferably, the torque generated by the resistance of the rotary damper of the utility model on the rotary rod is greater than the maximum torque generated by gravity on the center of the rotary rod during the rotation of the air inlet baffle.

[0009] Preferably, the air inlet baffle of the utility model completely covers the air inlet in a closed state.

[0010] Preferably, the air outlet of the utility model comprises a plurality of air outlet channels opened on the surface of the air inlet shell, and the air outlet channels are arranged perpendicular to the moving direction of the material on the grate cooler.

[0011] Preferably, a guide plate for guiding the incoming air is arranged on the inner side of the air inlet shell of the utility model at a position corresponding to the air outlet channel. The guide plate is arranged in a direction toward the side where the air inlet is located, and guides the gas to the corresponding air outlet channel along the direction of the incoming air flow.

[0012] Preferably, the guide plate of the utility model includes a first guide portion parallel to the air inlet direction and a second guide portion connecting the first guide portion and the surface of the air inlet shell at the air outlet channel. The second guide portion adopts an arc structure, and a smooth transition is guided between the first guide portion and the corresponding air outlet channel through the second guide portion.

[0013] Beneficial effect: The utility model provides a grate cooler air inlet valve, which uses a double baffle synchronous opening and closing form, can easily control the air intake volume, effectively stabilize the working conditions of the grate cooler, and can ensure the stability of the baffle position, which is easy to install and solves the problem of wasting a lot of time in the existing grate cooler when installing an air volume adjustment device separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 This is a bottom view of the air inlet valve of the grate cooler of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the air inlet valve of the grate cooler of the utility model;

[0017] Among them, 1-air inlet shell, 2-air inlet, 3-air outlet, 4-air inlet baffle, 5-rotating rod, 6-air outlet channel, 7-guide plate, 8-first guide part, 9-second guide part. Implementation

[0018] The present invention will be described more clearly and completely below by way of a preferred embodiment in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiment.

[0019] like Figure 1 and Figure 2 The figure shows an air inlet valve port of a grate cooler disclosed in the utility model, comprising an air inlet shell 1, on which an air inlet 2 and an air outlet 3 are arranged, and a rotating adjustment mechanism for adjusting the air inlet area is arranged at the air inlet 2, and the rotating adjustment mechanism includes an air inlet baffle 4 symmetrically arranged about the air inlet 2, and the air inlet baffle 4 is rotatably connected to the air inlet shell 1 through a rotating rod 5, and the air inlet area of ​​the air inlet 2 is adjusted by controlling the rotation angle of the air inlet baffle 4.

[0020] In order to keep the air inlet baffle 4 stable after adjusting the angle, a rotary damper is arranged between the end of the rotating rod 5 and the air inlet housing 1 of the utility model, and the angle of the air inlet baffle 4 is kept stable by the rotary damper. Figure 1 As shown, when the two air inlet baffles 4 are in a horizontal state, the baffles can completely cover the air inlet 2 to achieve complete closure of the air inlet. When the air inlet needs to be opened and the accumulated air inlet area needs to be controlled, the two air inlet baffles are rotated downward by an angle to control the size of the air inlet area between the two air inlet baffles, and the position of the air inlet baffle 4 is kept stable by a rotary damper. To this end, it is necessary to make the torque generated by the resistance of the rotary damper on the rotating rod 5 greater than the maximum torque generated by gravity on the center of the rotating rod 5 during the rotation of the air inlet baffle 4.

[0021] The air outlet 3 of the utility model includes a plurality of air outlet channels 6 opened on the surface of the air inlet shell 1. The air outlet channels 6 are arranged perpendicular to the moving direction of the material on the grate cooler. In order to ensure smooth cold air inlet, the air inlet shell 1 of the utility model is provided with a guide plate 7 for guiding the incoming air at a position corresponding to the air outlet channels 6. The guide plate 7 is arranged in a direction toward the side where the incoming air is located, and guides the gas to the corresponding air outlet channels 6 along the incoming air flow direction.

[0022] Specifically, the guide plate 7 includes a first guide portion 8 parallel to the air inlet direction and a second guide portion 9 connecting the first guide portion 8 and the surface of the air inlet shell at the air outlet channel 6. The second guide portion 9 adopts an arc structure, and a smooth transition is guided between the first guide portion 8 and the corresponding air outlet channel 6 through the second guide portion 9.

[0023] When the grate cooler air inlet valve provided by the utility model is used, the air inlet housing 1 is fixed by bolt holes, and then the rotating rod 5 is adjusted according to the working conditions to make the air inlet area between the two air inlet baffles 4 meet the air inlet requirements.

[0024] To ensure the fixed air volume, the opening angle of the air inlet is determined by rotating the damper. After the air inlet area of ​​the air inlet is fixed, the cold air enters from below, and after entering the air inlet shell 1, the first guide part 8 and the second guide part 9 cooperate to guide the incoming air to the air outlet channel 6, and then discharged from the air outlet channel 6 to cool the material and recover the high-temperature waste heat of the material.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A grate cooler air inlet valve, characterized in that: The invention comprises an air inlet shell (1), an air inlet (2) and an air outlet (3) being arranged on the air inlet shell, a rotary adjustment mechanism for adjusting the air inlet area being arranged at the air inlet (2), the rotary adjustment mechanism comprising an air inlet baffle (4) being symmetrically arranged with respect to the air inlet (2), the air inlet baffle (4) being rotatably connected to the air inlet shell (1) via a rotary rod (5), and the air inlet area of ​​the air inlet (2) being adjusted by controlling the rotation angle of the air inlet baffle (4).

2. The grate cooler air inlet valve according to claim 1, characterized in that: A rotation damper is provided between the end of the rotating rod (5) and the air inlet housing (1), and the rotation damper is used to ensure that the angle of the air inlet baffle (4) is stable.

3. The grate cooler air inlet valve according to claim 2, characterized in that: The torque generated by the resistance of the rotary damper on the rotary rod (5) is greater than the maximum torque generated by gravity on the center of the rotary rod (5) during the rotation of the air inlet baffle (4).

4. The grate cooler air inlet valve according to claim 1, characterized in that: The air inlet baffle (4) completely covers the air inlet (2) in a closed state.

5. The grate cooler air inlet valve according to claim 1, characterized in that: The air outlet (3) comprises a plurality of air outlet channels (6) opened on the surface of the air inlet housing (1), and the air outlet channels (6) are arranged perpendicular to the moving direction of the material on the grate cooler.

6. The grate cooler air inlet valve according to claim 5, characterized in that: A guide plate (7) for guiding the incoming air is arranged on the inner side of the air inlet housing (1) at a position corresponding to the air outlet channel (6); the guide plate (7) is arranged in a direction toward the side where the incoming air is located, and guides the gas to the corresponding air outlet channel (6) along the direction of the incoming air flow.

7. The grate cooler air inlet valve according to claim 6, characterized in that: The guide plate (7) comprises a first guide portion (8) parallel to the air inlet direction and a second guide portion (9) connecting the first guide portion (8) and the surface of the air inlet housing at the air outlet channel (6); the second guide portion (9) is an arc-shaped structure, and a smooth transition guide is provided between the first guide portion (8) and the corresponding air outlet channel (6).

Images