A sintering dual-machine parallel base material laying interconnection device

Abstract

This utility model belongs to the field of steel production technology. It provides a parallel bottom material feeding interconnection device for sintering machines, suitable for production lines where two sintering machines operate simultaneously. The device includes two sets of bottom material feeding assemblies, an X-shaped interconnection chute, and two interconnection gate valves. Each of the two sets of bottom material feeding assemblies is equipped with a feed port for supplying bottom material to the two sintering machines, and a feed valve is installed at each feed port. The X-shaped interconnection chute includes two inlets, two outlets, and a chute. The two inlets are respectively connected to the two sets of bottom material feeding assemblies, and one outlet corresponds to one of the sintering machines and is used to supply bottom material to that corresponding sintering machine. The chute connects the two inlets and the two outlets. An interconnection gate valve is installed at one of the outlets. This utility model can ensure the supply of bottom material during maintenance and re-feeding production, and during bottom material system malfunctions.

Description

Technical Field

[0001] This utility model relates to the field of steel production technology, specifically to a sintering dual-machine parallel bottom material laying interconnection device. Background Technology

[0002] The sintering bottom material is sintered ore with a particle size between 12mm and 20mm. It is obtained after the sintered ore is granulated and screened, and then transported to the sintering machine for use as a bottom material via a belt conveyor system. During the sintering process, the bottom material mainly serves as insulation, preventing the sintered mixture from sticking to the grate during the combustion and reduction reaction, and preventing the material from burning directly on the grate bars of the grate and damaging them. The sintered ore bottom material also acts as a filter, reducing the clogging of the grate bars of the grate by the mixture and improving the permeability of the sintering bed.

[0003] When the system malfunctions during maintenance and re-feeding or bottom-laying, production without bottom-laying results in low feed rates and low product quality. Production without bottom-laying directly impacts production in the following ways: 1. Severe burn damage to the grate bars on the trolley; 2. Severe burn damage to the trolley's heat insulation pads; 3. Sinter sticking to the trolley; 4. Numerous holes appear on the production surface; 5. A large amount of sintered mixed ore is drawn into the main flue, main power supply, main exhaust, and air box, causing equipment wear and damage; 6. Red ore burns and damages the conveyor belts; 7. Difficulty in controlling the combustion endpoint of the sinter, causing production stoppage.

[0004] Therefore, ensuring the supply of base material during maintenance, re-feeding production, and when the base material system malfunctions is a problem that needs to be solved. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems mentioned above by providing a sintering dual-machine parallel bottom material laying interconnection device, which can ensure the supply of bottom material when maintenance and re-feeding production are carried out or when the bottom material laying system is abnormal.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A parallel bottom material laying and interconnection device for sintering machines is applicable to a production line where two sintering machines operate simultaneously. It includes two sets of bottom material laying and feeding assemblies, an X-shaped interconnection chute, and two interconnection gate valves. Each of the two sets of bottom material laying and feeding assemblies is equipped with a feeding port for supplying bottom material to the two sintering machines respectively, and a feeding valve is installed at each feeding port. The X-shaped interconnection chute includes two inlets, two outlets, and a chute. The two inlets are respectively connected to the two sets of bottom material laying assemblies, and one outlet corresponds to one of the sintering machines and is used to supply bottom material to the corresponding sintering machine. The chute connects the two inlets and the two outlets. An interconnection gate valve is installed at one of the outlets.

[0008] Furthermore, the base material spreading assembly includes a loading funnel, a feeding belt, and a spreading belt. The loading funnel is provided with the feeding port, and a filling port is opened at the end of the loading funnel opposite to the feeding port. The feeding belt is located above the loading funnel and corresponds to the filling port. The feeding port is connected to the loading funnel. The spreading belt is located below the loading funnel and corresponds to both the feeding port and the discharge port. The spreading belt extends toward the sintering machine. The feeding valve is installed on the loading funnel.

[0009] Furthermore, the material loading hopper includes a guide box and a top box. The guide box has a feeding port at one end facing the material spreading belt. The feeding valve is installed on the guide box. The top box is connected to the end of the guide box away from the feeding port and communicates with the guide box. The filling port is located on the top box. The end of the top box away from the guide box extends toward the top box of another bottom material spreading assembly. The inlet is communicated with the top box.

[0010] Furthermore, the feed belt extends to the finished product screening area.

[0011] Furthermore, the base material laying assembly also includes a material storage bin, which is connected to the material laying belt and the sintering machine.

[0012] Furthermore, the top material box is equipped with a material distributor and a material accumulation platform.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects:

[0014] When the above-mentioned sintering dual-machine parallel bottom material feeding interconnection device is in use, the two sintering machines operate simultaneously, and the feed ports of both sets of bottom material feeding components are in normal feeding state. The two interconnection gate valves on the X-type interconnection chute are both in the closed state of their corresponding discharge ports. At this time, the bottom material feeding components normally supply bottom material to the corresponding sintering machine. When the bottom material feeding component corresponding to one of the sintering machines needs maintenance and re-feeding or malfunctions, the feed port is closed by the corresponding feed valve, and the corresponding interconnection gate valve of that sintering machine is opened. Then, the bottom material in the other bottom material feeding component is supplied to that sintering machine via the X-type interconnection chute. Therefore, this utility model can ensure the supply of bottom material during maintenance and re-feeding or when the bottom material system malfunctions.

[0015] Furthermore, data shows that after achieving interconnection of the bottom material supply, production can be directly carried out using the bottom material during maintenance and restart, improving production efficiency. Specifically, the feeding rate within 2 hours of startup can be directly increased from 500t / h to 700t / h, with a decrease in the ore return rate of approximately 8%. The hourly output is approximately 320t with a feeding rate of 500t and approximately 550t with a feeding rate of 700t, representing an increase of approximately 230t per hour during startup. This also improves production efficiency during bottom material system failures, as interconnection supply avoids production reductions due to malfunctions. It also reduces the impact of production without bottom material, minimizing damage to sintering machine trolley bars and heat insulation pads, extending their service life, and reducing the labor intensity of workers replacing spare parts. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the parallel bottom material laying and interconnection device for sintering dual machines.

[0017] Figure 2 A schematic diagram of the structure of the base material fabric assembly.

[0018] Figure 3 This is a schematic diagram of the material distribution structure of the charging funnel.

[0019] In the attached diagram, 1-base material laying and feeding assembly, 11-feeding funnel, 111-guide box, 112-filling port, 113-top material box, 114-feeding port, 115-feeding valve, 116-material laying bin, 12-feeding belt, 121-distributor, 13-laying belt, 2-X-type interconnecting chute, 21-feeding port, 22-discharge port, 23-chute, 3-interconnecting slide valve, 100-sintering machine. Detailed Implementation

[0020] 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.

[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figures 1 to 3 As shown, a preferred embodiment of this utility model provides a parallel bottom material laying and interconnection device for two sintering machines 100 operating simultaneously. Specifically, the two sintering machines 100 are sintering machine No. 1 and sintering machine No. 2, designed side-by-side. The bottom material is generated at the finished product screening point. The parallel bottom material laying and interconnection device for two sintering machines includes two sets of bottom material spreading assemblies 1, an X-shaped interconnection chute 2, and two interconnection gate valves 3. Each of the two sets of bottom material spreading assemblies 1 is provided with a feed port 114 for supplying bottom material to the two sintering machines 100 respectively. A feed valve 115 is provided at each feed port 114, and the feed valve 115 is a hydraulic gate valve. The X-shaped interconnected chute 2 includes two inlets 21, two outlets 22, and a chute 23. The two inlets 21 are respectively connected to two sets of the base material feeding assemblies 1. One outlet 22 corresponds to one of the sintering machines 100 and is used to supply base material to the corresponding sintering machine 100. The chute 23 connects the two inlets 21 and the two outlets 22. An interconnected slide gate valve 3 is installed at one of the outlets 22, and the interconnected slide gate valve 3 is a hydraulic slide gate valve.

[0024] When the above-mentioned sintering dual-machine parallel bottom material feeding interconnection device is in use, the two sintering machines 100 operate simultaneously, and the feed ports 114 of both sets of bottom material feeding components 1 are in normal feeding state. The two interconnection gate valves 3 on the X-type interconnection chute 2 are both in the closed state of their corresponding discharge ports 22. At this time, the bottom material feeding component 1 normally supplies bottom material to the corresponding sintering machine 100. When the bottom material feeding component 1 corresponding to one of the sintering machines 100 needs to be repaired and re-fed or an abnormality occurs, the feed port 114 is closed by the corresponding feed valve 115, and the interconnection gate valve 3 corresponding to that sintering machine 100 is opened. Then, the bottom material in the other bottom material feeding component 1 is supplied to that sintering machine 100 through the X-type interconnection chute 2. It can be seen that this utility model can ensure the supply of bottom material when repairing and re-fed or when the bottom material system is abnormal.

[0025] In this embodiment, the base material spreading assembly 1 includes a loading funnel 11, a feeding belt 12, and a spreading belt 13. The loading funnel 11 is provided with a feeding port 114, and a filling port 112 is opened at one end of the loading funnel 11 opposite to the feeding port 114. The feeding belt 12 is located above the loading funnel 11 and corresponds to the filling port 112. The feeding belt 12 extends to the finished product screening point and is used to convey the base material to the filling port 112. The feeding port 21 communicates with the loading funnel 11 so that the base material in the two loading funnels 11 can enter the chute 23 for later use. The material spreading belt 13 is located below the loading funnel 11 and corresponds to both the feed port 114 and the discharge port 22. The material spreading belt 13 extends towards the sintering machine 100. Specifically, the base material spreading assembly 1 also includes a spreading bin 116, which is a bin for temporarily storing base material. The spreading bin 116 connects the material spreading belt 13 to the sintering machine 100 and can spread the base material conveyed by the material spreading belt 13 into the sintering machine 100. The feed valve 115 is installed on the loading funnel 11.

[0026] In this embodiment, the loading funnel 11 includes a guide box 111 and a top box 113. The guide box 111 has a feed port 114 at one end facing the material spreading belt 13. The feed valve 115 is installed on the guide box 111. The top box 113 is connected to the end of the guide box 111 opposite to the feed port 114 and communicates with the guide box 111. The filling port 112 is located on the top box 113. The top material box 113 is equipped with a distributor 121 and a material accumulation platform. The distributor 121 works in conjunction with the material accumulation platform to distribute the base material conveyed by the feed belt 12 toward the guide box 111 and the X-shaped interconnecting chute 2. Specifically, the distributor 121 is an electro-hydraulic three-way distributor in the prior art. The material accumulation platform is a platform extending from the feed belt 12 to the inlet of the distributor 121. The two outlets of the distributor 121, opposite to the material accumulation platform, extend to the inlet of the guide box 111 and the inlet 21 of the chute 23, respectively. After the base material accumulates on the material accumulation platform and falls into the distributor 121, the distributor 121 distributes the base material toward the guide box 111 and the X-shaped interconnecting chute 2. One end of the top material box 113 opposite to the guide box 111 extends toward the top material box 113 of another base material spreading assembly 1. The feed inlet 21 is connected to the end of the top material box 113 that is away from the guide box 111.

[0027] Working principle:

[0028] Initially, both sintering machines 100 operate simultaneously. The feeding valve 115 opens the feeding port 114, and the feeding ports 114 of both sets of bottom material distribution assemblies 1 are in normal feeding condition. The two interconnecting slide valves 3 on the X-type interconnecting chute 2 are both in the closed state of their corresponding discharge ports 22. The feed belt 12 conveys the bottom material from the finished product screening tower to the filling port 112 of the top material box 113. After the distributor 121 and the material accumulation platform work together, the bottom material falls into the chute 23 and the guide box 111. At this time, the bottom material distribution assembly 1 normally supplies bottom material to the corresponding sintering machine 100.

[0029] When the base material feeding assembly 1 corresponding to one of the sintering machines 100 needs to be repaired and re-fed or an abnormality occurs, the corresponding feeding valve 115 is used to close the feeding port 114 and open the corresponding interconnection gate valve 3 of the sintering machine 100. Then the base material in the other base material feeding assembly 1 is supplied to the sintering machine 100 through the X-type interconnection chute 2.

[0030] When additional material supply to the sintering machine 100 is required, the discharge port 22 is opened by controlling the corresponding interconnecting slide valve 3, and the material in the chute 23 can fall into the corresponding material conveyor belt 13 and be conveyed to the sintering machine 100.

[0031] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A sintering double machine parallel bedding interworking device, suitable for a production line in which two sintering machines (100) operate simultaneously, characterized in that: The system includes two sets of base material feeding assemblies (1), an X-shaped interconnected chute (2), and two interconnected gate valves (3). Each of the two sets of base material feeding assemblies (1) is provided with a feed port (114) for supplying base material to the two sintering machines (100) respectively. A feed valve (115) is provided at the feed port (114). The X-shaped interconnected chute (2) includes two inlets (21), two outlets (22), and a chute (23). The two inlets (21) are respectively connected to the two sets of base material feeding assemblies (1). One outlet (22) corresponds to one of the sintering machines (100) and is used to supply base material to the corresponding sintering machine (100). The chute (23) connects the two inlets (21) and the two outlets (22). An interconnected gate valve (3) is installed at one of the outlets (22).

2. The sintering dual-machine parallel bottom material laying interconnection device as described in claim 1, characterized in that: The base material feeding assembly (1) includes a loading funnel (11), a feeding belt (12), and a spreading belt (13). The loading funnel (11) is provided with the feeding port (114), and a filling port (112) is opened at the end of the loading funnel (11) away from the feeding port (114). The feeding belt (12) is located above the loading funnel (11) and corresponds to the filling port (112). The feeding port (21) is connected to the loading funnel (11). The spreading belt (13) is located below the loading funnel (11) and corresponds to both the feeding port (114) and the discharge port (22). The spreading belt (13) extends toward the sintering machine (100). The feeding valve (115) is installed on the loading funnel (11).

3. The sintering dual-machine parallel bottom material laying interconnection device as described in claim 2, characterized in that: The loading funnel (11) includes a guide box (111) and a top box (113). The guide box (111) has a feed port (114) at one end facing the material laying belt (13). The feed valve (115) is installed on the guide box (111). The top box (113) is connected to the end of the guide box (111) away from the feed port (114) and communicates with the guide box (111). The filling port (112) is located on the top box (113). The end of the top box (113) away from the guide box (111) extends toward the top box (113) of another bottom material laying assembly (1). The inlet (21) communicates with the top box (113).

4. The sintering dual-machine parallel bottom material laying interconnection device as described in claim 2, characterized in that: The feed belt (12) extends to the finished product screening area.

5. The sintering dual-machine parallel bottom material laying interconnection device as described in claim 2, characterized in that: The base material laying assembly (1) also includes a material storage bin (116), which connects the material laying belt (13) to the sintering machine (100).

6. The sintering dual-machine parallel bottom material laying interconnection device as described in claim 3, characterized in that: The top material box (113) is equipped with a material distributor (121) and a material accumulation platform.

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