Air pressure balance structure of ring cooling machine

Abstract

The utility model provides a kind of ring cooling machine wind pressure balance structure, including wind box subassembly, blow mechanism, liquid tank sealing mechanism, supporting mechanism and multiple resistance balancing devices, wind box subassembly includes multiple wind box units sequentially arranged along longitudinal direction, each wind box unit includes the first wind box with top opening setting and two second wind boxes, the first wind box is communicated with two second wind boxes respectively by communicating pipe, multiple resistance balancing devices are built into the top of first wind box, and resistance balancing device has wind baffle for blocking cooling wind. So first wind box (access cooling wind's air inlet wind box) is communicated with adjacent second wind box (wind box of dispersive cooling wind) by communicating pipe, part cooling wind enters two sides wind box and is dispersed by communicating pipe, and resistance balancing device with wind baffle is set in the top of first wind box and is decompressed, to reduce the amount of cooling wind into air inlet wind box upper portion, to solve the problem such as liquid tank water level fluctuation big, liquid tank water overflow etc.

Description

Technical Field

[0001] This utility model relates to the field of annular cooler technology, and in particular to an annular cooler air pressure balancing structure. Background Technology

[0002] Currently, most domestic ring coolers adopt the pellet type, mainly used to cool high-temperature ore discharged from rotary kilns or sintering machines and to recover waste heat. To meet the zero-emission requirements, the lower seal is generally in the form of a liquid tank, and the upper part of the trolley is a grate bar. The high-temperature ore is placed on the grate bar. The trolley is supported by support rollers and makes a circular motion to complete the loading and unloading. Cooling air is blown in through the air box and enters the air duct area between the inner and outer liquid tanks. After being dispersed to the bottom of several surrounding trolleys, it passes through the grate bar to cool the sintered ore.

[0003] However, in the existing technology, the air inlet box is directly connected to the blower, so the air velocity is highest at the air inlet box. This will result in high air pressure at this location. High air pressure will cause the water level in the liquid tank to be unstable, and sometimes even cause the liquid tank to overflow. At the same time, the plate vibrates greatly and produces abnormal noise.

[0004] Therefore, it is necessary to propose a wind pressure balancing structure for annular coolers to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this invention is to provide a pressure balancing structure for an annular cooler to solve the problem of high air pressure in the inlet air box of the existing annular cooler during air drying and cooling.

[0006] To achieve the above objectives, this utility model provides a pressure balancing structure for an annular cooler, including a wind box assembly, a blower mechanism, a liquid tank sealing mechanism, a support mechanism, and multiple resistance balancing devices; wherein,

[0007] The liquid tank sealing mechanism is connected to the top outer side of the air box assembly, and the support mechanism is connected to the frame and disposed on the outside of the liquid tank sealing mechanism. The tops of both the liquid tank sealing mechanism and the support mechanism are used for trolley connection.

[0008] The bellows assembly includes a plurality of bellows units arranged longitudinally. Each bellows unit includes a first bellows with a top opening and two second bellows. The first bellows is arranged longitudinally between the two second bellows. The first bellows is connected to the blower assembly and is connected to the two second bellows respectively through a connecting pipe.

[0009] Multiple resistance balancing devices are built into the top of the first air box, the resistance balancing devices extend longitudinally, and the resistance balancing devices have a windbreak for blocking the cooling air.

[0010] Preferably, each of the resistance balancing devices includes two inclined steel plates welded together at their top ends. The two ends of the inclined steel plates are respectively connected to the first wind box along the longitudinal direction, and the two inclined steel plates enclose each other to form the windbreak with a triangular cross-section.

[0011] Preferably, each of the resistance balancing devices further includes a plurality of longitudinally spaced stiffeners, which are connected between the bottom ends of the two inclined steel plates.

[0012] Preferably, the blower mechanism includes an air inlet pipe and a blower, one end of the air inlet pipe is connected to the first air box, and the other end of the air inlet pipe is connected to the air outlet of the blower.

[0013] Preferably, the number of resistance balancing devices on the top of the first air box away from the air inlet pipe is greater than the number of resistance balancing devices on the side closer to the air inlet pipe.

[0014] Preferably, the number of resistance balancing devices on the top of the first air box, away from the air inlet pipe, is two.

[0015] Preferably, two adjacent resistance balancing devices are spaced apart.

[0016] Preferably, the outermost resistance balancing device is spaced apart from the side wall of the first air box.

[0017] Preferably, it also includes an ash discharge valve, wherein the bottom ends of the first air box and the second air box are provided with ash discharge ports, and the bottom of the first air box and the second air box are respectively provided with ash discharge valves that are connected to the ash discharge ports.

[0018] Preferably, the angle between the inclined surface of the inclined steel plate and the horizontal plane is 60° to 62°.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model provides a wind pressure balancing structure for an annular cooler, including a wind box assembly, a blower mechanism, a liquid tank sealing mechanism, a support mechanism, and multiple resistance balancing devices. The liquid tank sealing mechanism is connected to the top outer side of the wind box assembly, and the support mechanism is connected to the frame and disposed on the outer side of the liquid tank sealing mechanism. The tops of both the liquid tank sealing mechanism and the support mechanism are used for trolley connection. The wind box assembly includes multiple wind box units arranged longitudinally. Each wind box unit includes a first wind box with a top opening and two second wind boxes. The first wind box is arranged longitudinally between the two second wind boxes. The first wind box is connected to the blower mechanism and is connected to the two second wind boxes respectively through a connecting pipe. Multiple resistance balancing devices are built into the top of the first wind box. The resistance balancing devices extend longitudinally and have a baffle for blocking the cooling air. The first air box (the air inlet box that receives cooling air) is connected to the adjacent second air box (the air box that disperses cooling air) through a connecting pipe. Part of the cooling air enters the air boxes on both sides through the connecting pipe for dispersion. Multiple resistance balancing devices with windbreaks are installed on the top of the first air box to reduce the amount of cooling air entering the upper part of the air inlet box, thereby solving the problems of large fluctuations in the liquid tank water level at the air inlet box, liquid tank water overflow, and vibration and abnormal noise of the baffle plate. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional schematic diagram of the overall structure in one embodiment of the present invention, illustrating an application scenario.

[0023] Figure 2 This is a perspective view of the overall structure in one embodiment of the present invention, illustrating an application scenario.

[0024] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0025] Explanation of icon numbers:

[0026] 10. Air box assembly; 110. First air box; 120. Second air box; 130. Connecting pipe; 140. Ash discharge valve; 20. Air blower mechanism; 210. Air inlet pipe; 220. Fan; 30. Liquid tank sealing mechanism; 310. Liquid tank; 320. Liquid tank insert plate; 40. Support mechanism; 410. Support roller; 50. Resistance balancing device; 510. Inclined steel plate; 520. Rib plate; 60. Trolley. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see the appendix Figure 1-2 This utility model provides an annular cooler air pressure balancing structure, including an air box assembly 10, a blower mechanism 20, a liquid tank sealing mechanism 30, a support mechanism 40, and multiple resistance balancing devices 50. First, it should be noted that in this application, "longitudinal" refers to the direction of travel of the trolley 60, and "lateral" refers to the width direction of the trolley 60, as shown in the accompanying drawings. Unlike existing structures where the air inlet box is directly connected to the blower 220, resulting in the highest air velocity at the air inlet box, this structure suffers from high air pressure. High air pressure leads to unstable water levels in the liquid tank 310, sometimes even causing water overflow, and also results in significant vibration and abnormal noise from the baffle plate. This application addresses these shortcomings by providing an annular cooler air pressure balancing structure, as detailed below:

[0032] The liquid tank sealing mechanism 30 is connected to the top outer side of the air box assembly 10, and the support mechanism 40 is connected to the frame and disposed on the outside of the liquid tank sealing mechanism 30. The tops of the liquid tank sealing mechanism 30 and the support mechanism 40 are both used for connection of the trolley 60. The air box assembly 10 includes a plurality of air box units arranged longitudinally. Each air box unit includes a first air box 110 with a top opening and two second air boxes 120. The first air box 110 is arranged longitudinally between the two second air boxes 120. The first air box 110 is connected to the blower mechanism 20 and is connected to the two second air boxes 120 respectively through a connecting pipe 130. A plurality of resistance balancing devices 50 are built into the top of the first air box 110. The resistance balancing devices 50 extend longitudinally and have a baffle for blocking the cooling air.

[0033] Specifically, the annular cooler pressure balancing structure in this application includes a wind box assembly 10, a blower mechanism 20, a liquid tank sealing mechanism 30, a support mechanism 40, and multiple resistance balancing devices 50. The support mechanism 40 supports the trolley 60 for its operation and typically includes a support roller 410. The liquid tank sealing mechanism 30 is used to achieve sealing and cooling functions. To achieve a sealing effect, two of them are typically arranged laterally opposite each other, and each includes a liquid tank 310 and a liquid tank insert plate 320. The liquid tank 310 is used to add cooling water, and the liquid tank insert plate... The liquid tank 320 extends upward to the bottom of the trolley 60 to achieve a sealing effect, so that the top of the liquid tank plate 320 and the top of the support roller 410 are flush for connection of the trolley 60. This is well known to those skilled in the art, so it will not be described in detail here. An air duct is formed between the liquid tanks 310 of the two liquid tank 310 sealing units for the circulation of cooling air in the air box. Therefore, the liquid tank sealing mechanism 30 is connected to the top outer side of the air box assembly 10, and the bottom is connected to the air box assembly 10 to receive cooling air to cool the sinter on the trolley 60.

[0034] The bellows assembly 10 includes multiple bellows units arranged longitudinally to evenly distribute the bellows along the extension direction of the trolley 60, allowing cooling air to be supplied. Each bellows assembly 10 includes a first bellows 110 with a top opening and two second bellows 120. The first bellows 110 is an air inlet bellows, directly connected to the blower mechanism 20, which serves as the cooling air source. The two second bellows 120 are inlet bellows that do not directly supply air. Typically, the wind speed is highest at the inlet bellows location, resulting in high wind pressure. This application addresses this by using a connecting pipe 130 to connect the first bellows 110 (to...) The air inlet box for cooling air is connected to the two second air boxes 120 (air boxes for dispersing cooling air). Thus, after the cooling air is introduced, part of the cooling air enters the second air boxes 120 on both sides through the connecting pipe 130 for dispersion, thereby reducing the cooling air volume and wind speed. The resistance balancing device 50 is used to further balance the wind pressure of the first air box 110. Therefore, multiple resistance balancing devices 50 are built into the top of the first air box 110, extending longitudinally so that both ends along the longitudinal direction are connected to the first air box 110. Combined with its own windproof part, it achieves the purpose of windproofing, thereby reducing the air volume and wind speed and reducing the wind pressure.

[0035] In a preferred embodiment of the present invention, each of the resistance balancing devices 50 includes two inclined steel plates 510 with their top ends welded together. The two ends of the inclined steel plates 510 are respectively connected to the first wind box 110 along the longitudinal direction. The two inclined steel plates 510 are joined together to form the windbreak with a triangular cross section.

[0036] It should be noted that the resistance balancing device 50 in this application adopts a structure composed of two inclined steel plates 510. The tops of the two inclined steel plates 510 are fixed by welding and then inclined downwards on both sides of the horizontal direction to form a triangular cross-section. The inclined steel plates 510 extend longitudinally to both ends and are connected to the first wind box 110, so that the plate surface enclosed by the two inclined steel plates 510 is the windbreak. When the cooling air rises to the top of the first wind box 110, part of the cooling air will be blocked by the plate surface (windbreak) enclosed by the two inclined steel plates 510, thereby achieving the windbreak effect, reducing the air volume and wind speed and reducing the wind pressure. In addition, the inclined form can also facilitate the falling of the sintered ore above, which is convenient for subsequent discharge of the loose material. Preferably, the angle between the inclined surface of the inclined steel plate 510 and the horizontal plane is 60° to 62°. Those skilled in the art can set it according to actual needs. In another embodiment, other structural forms such as an arc plate with an opening downwards can also be adopted.

[0037] In a preferred embodiment of the present invention, each of the resistance balancing devices 50 further includes a plurality of longitudinally spaced stiffeners 520, which are connected between the bottom ends of the two inclined steel plates 510.

[0038] It should be noted that the stiffening plate 520 is used to strengthen the structural strength between the two inclined steel plates 510, improve the overall connection and stability at the bottom, and adopt the form of multiple stiffening plates 520 arranged at intervals, so that the cooling air can enter from the gap between adjacent stiffening plates 520 without affecting the windproof effect of the windproof part.

[0039] In a preferred embodiment of the present invention, the blower mechanism 20 includes an air inlet pipe 210 and a blower 220. One end of the air inlet pipe 210 is connected to the first air box 110, and the other end of the air inlet pipe 210 is connected to the air outlet of the blower 220.

[0040] It is worth noting that the fan 220 is used to blow in cooling air, which flows directly into the first air box 110 through the air inlet pipe 210. After the cooling air flows in through the air inlet pipe 210, part of it flows into the second air boxes 120 on both sides through the connecting pipe 130, and the other part flows into the top of the first air box 110 and is blocked by the resistance balancing device 50 to reduce the air pressure.

[0041] In a preferred embodiment of the present invention, the number of resistance balancing devices 50 on the side of the top of the first air box 110 away from the air inlet pipe 210 is greater than the number of resistance balancing devices 50 on the side closer to the air inlet pipe 210.

[0042] It is worth noting that the airflow used for blowing air through the fan 220 has a certain velocity. Therefore, the airflow near the inlet pipe 210 is usually less, while the airflow away from the inlet pipe 210 is more. Therefore, the number of resistance balancing devices 50 on the top of the first air box 110 on the side away from the inlet pipe 210 should be increased to specifically balance the air pressure. In a preferred embodiment of this application, there are two resistance balancing devices 50 on the top of the first air box 110 on the side away from the inlet pipe 210, and one resistance balancing device 50 on the side near the inlet pipe 210. (See attached drawing.) Figure 1 As shown, the actual combination method and quantity can be set by those skilled in the art according to the actual application of the calculation.

[0043] Furthermore, the two adjacent resistance balancing devices 50 are spaced apart.

[0044] It should be understood that if multiple resistance balancing devices 50 are set on one side, for example, if there are two resistance balancing devices 50 on the side away from the air inlet pipe 210 in the embodiment of this application, the two adjacent resistance balancing devices 50 need to be spaced apart to allow for the material to fall.

[0045] Furthermore, the outermost resistance balancing device 50 is spaced apart from the side wall of the first air box 110.

[0046] It should be noted that when installing the outermost (the two closest to the two side walls of the first air box 110 along the transverse direction) resistance balancing devices 50, a gap should also be reserved between them and the two side walls of the first air box 110 along the transverse direction to facilitate the falling of sintered ore.

[0047] Furthermore, it also includes an ash discharge valve 140. The bottom ends of the first air box 110 and the second air box 120 are both provided with ash discharge ports, and the bottom of the first air box 110 and the second air box 120 are respectively provided with ash discharge valves 140 that are connected to the ash discharge ports.

[0048] It should be noted that the ash discharge valve 140 is used to unload the loose material remaining at the bottom of the air box when cooling is not in progress, so as to avoid accumulation; while during normal cooling, the ash discharge valve 140 should be closed to avoid cooling air leakage.

[0049] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pressure balancing structure for an annular cooler, characterized in that, It includes a bellows assembly, a blower mechanism, a liquid tank sealing mechanism, a support mechanism, and multiple resistance balancing devices; among which, The liquid tank sealing mechanism is connected to the top outer side of the air box assembly, and the support mechanism is connected to the frame and disposed on the outside of the liquid tank sealing mechanism. The tops of both the liquid tank sealing mechanism and the support mechanism are used for trolley connection. The bellows assembly includes a plurality of bellows units arranged longitudinally. Each bellows unit includes a first bellows with a top opening and two second bellows. The first bellows is arranged longitudinally between the two second bellows. The first bellows is connected to the blower assembly and is connected to the two second bellows respectively through a connecting pipe. Multiple resistance balancing devices are built into the top of the first air box, the resistance balancing devices extend longitudinally, and the resistance balancing devices have a windbreak for blocking the cooling air.

2. The annular cooler air pressure balance structure according to claim 1, characterized in that, Each of the aforementioned resistance balancing devices includes two inclined steel plates welded together at their top ends. The two ends of the inclined steel plates are respectively connected to the first wind box along the longitudinal direction, and the two inclined steel plates enclose each other to form the windbreak with a triangular cross-section.

3. The annular cooler air pressure balance structure according to claim 2, characterized in that, Each of the resistance balancing devices also includes a plurality of longitudinally spaced stiffeners, which are connected between the bottom ends of the two inclined steel plates.

4. The annular cooler air pressure balance structure according to claim 1, characterized in that, The blower mechanism includes an air inlet pipe and a blower. One end of the air inlet pipe is connected to the first air box, and the other end of the air inlet pipe is connected to the air outlet of the blower.

5. The annular cooler air pressure balance structure according to claim 4, characterized in that, The number of resistance balancing devices on the side of the top of the first air box away from the air inlet pipe is greater than the number of resistance balancing devices on the side closer to the air inlet pipe.

6. The annular cooler air pressure balance structure according to claim 5, characterized in that, The number of resistance balancing devices on the top of the first air box, away from the air inlet pipe, is two.

7. The annular cooler air pressure balance structure according to claim 6, characterized in that, The two adjacent resistance balancing devices are spaced apart.

8. The annular cooler air pressure balance structure according to claim 5, characterized in that, The outermost resistance balancing device is spaced apart from the side wall of the first air box.

9. The annular cooler air pressure balance structure according to claim 1, characterized in that, It also includes ash discharge valves. The bottom of the first air box and the second air box are both provided with ash discharge ports. The bottom of the first air box and the second air box are respectively provided with ash discharge valves that are connected to the ash discharge ports.

10. The annular cooler air pressure balance structure according to claim 2, characterized in that, The angle between the inclined surface of the inclined steel plate and the horizontal plane is 60° to 62°.

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