Coke screening device
By designing a coke screening device, the coke powder generated in the antimony blower furnace smelting was screened, which solved the problems of poor air permeability in the furnace and increased rebate caused by coke powder, and achieved a more stable combustion effect and reduced rebate effect.
Patent Information
- Application Number
- CN202420853143.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-23
AI Technical Summary
During the smelting of antimony blower furnace, the production of coke powder leads to poor breathability and poor combustion effect in the furnace, and forms a vicious cycle, which increases the burden of rebate processing.
A coke screening device is designed, including a coke storage bucket, a feeder, a chute, a screening grid, a coke powder collection bucket and a coke metering bucket. The coke before entering the furnace is screened through the screening grid to collect the coke powder and realize automatic metering.
Through the use of coke screening device, coke powder is greatly reduced, the production of refrigeration of the blast furnace is reduced, the breathability of the combustion layer in the furnace is improved, and the bottom fire and the stability of the furnace condition is ensured.
Smart Images
Figure CN222739640U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smelting, in particular to a coke screening device. Background Art
[0002] Antimony blast furnace smelting currently uses coke as a heat source. A large amount of coke powder will be generated during the process of coke transportation and hopper loading. The coke powder entering the furnace will cause the air permeability in the furnace to deteriorate, affecting the coke combustion effect, while causing insufficient bottom fire and fluctuating furnace conditions. Furthermore, the coke powder is brought into the cooling fire cabinet by the blast, causing a significant increase in the return material in the fire cabinet. The return material needs to be put into the furnace for processing again. In this way, the coke powder forms a vicious cycle in the blast furnace system. Utility Model Content
[0003] In view of this, the purpose of the utility model is to provide a coke screening device so as to screen the coke powder before the coke enters the furnace.
[0004] The utility model solves the above problems through the following technical means:
[0005] A coke screening device comprises a coke storage hopper, a feeder, a chute, a coke powder collecting hopper and a coke measuring hopper, wherein a discharge port is arranged at the bottom of the coke storage hopper, the feeder is arranged below the discharge port, the chute is arranged obliquely at the discharge end of the feeder, a screening grid is arranged at the feed end of the chute, a coke powder collecting hopper is arranged below the screening grid, and the coke measuring hopper is arranged at the discharge end of the chute.
[0006] Furthermore, it also includes a vibrator and a controller, wherein the vibrator is arranged on the chute, and the feeder and the vibrator are both electrically connected to the controller.
[0007] Furthermore, it also includes a fixed frame, and the feeder and the chute are both hung and fixed to the fixed frame.
[0008] Furthermore, the upper end of the chute is connected to the fixed frame through a fixed rod, and the lower end of the chute is connected to the fixed frame through a telescopic rod.
[0009] Furthermore, the telescopic rod is telescopically locked by a fixing bolt.
[0010] Furthermore, the inclination angle of the chute is 25° to 30°.
[0011] Beneficial effects of the utility model:
[0012] The coke screening device of the present application comprises a coke storage hopper, a feeder, a chute, a coke powder collecting hopper and a coke measuring hopper. The bottom of the coke storage hopper is provided with a discharge port, the feeder is arranged below the discharge port, the chute is arranged obliquely at the discharge end of the feeder, the feed end of the chute is provided with a screening grid, a coke powder collecting hopper is arranged below the screening grid, and the coke measuring hopper is arranged at the discharge end of the chute. The coke before entering the furnace is screened by the coke screening device. After the coke is screened, the coke powder entering the furnace is greatly reduced, the return material generation of the blast furnace is greatly reduced, the combustion layer in the furnace has good air permeability, the bottom fire is strong, and the furnace condition is stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0014] Figure 1 It is a schematic diagram of a preferred embodiment of the utility model. DETAILED DESCRIPTION
[0015] The utility model will be described in detail below with reference to the accompanying drawings. Figure 1 As shown: a coke screening device, comprising a coke storage hopper 1, a feeder 3, a chute 8, a coke powder collecting hopper 5, a coke measuring hopper 7 and a fixed frame 12, wherein a discharge port 2 is arranged at the bottom of the coke storage hopper, the feeder is arranged below the discharge port, the chute is arranged obliquely at the discharge end of the feeder, and the inclination angle of the chute is 25° to 30°, a screening grid 10 is arranged at the feed end of the chute, a coke powder collecting hopper is arranged below the screening grid, and the coke measuring hopper is arranged at the discharge end of the chute. The feeder and the chute are both hung and fixed to the fixed frame.
[0016] During operation, coke flows out from the discharge port of the coke storage bucket and is transported to the chute through the feeder. The chute is provided with a screening grid. When the coke powder passes through the screening grid, it falls into the coke powder collection bucket through the gap of the screening grid for collection; the screened coke flows into the coke metering bucket through the chute. The coke is automatically screened in the process of entering the coke metering bucket. The coke powder entering the furnace is greatly reduced, and the return of the blast furnace is greatly reduced. The combustion layer in the furnace has good air permeability, the bottom fire is strong, and the furnace condition is stable.
[0017] As a further improvement to the above technical solution, it also includes a vibrator 6 and a controller 4, wherein the vibrator is arranged on the chute, and the feeder and the vibrator are both electrically connected to the controller. The controller controls the vibrator and the feeder to start at the same time, and the vibrator drives the chute and the screening grid to vibrate, thereby enhancing the screening effect.
[0018] As a further improvement of the above technical solution, the upper end of the chute is connected to the fixed frame through a fixed rod, and the lower end of the chute is connected to the fixed frame through a telescopic rod 9. The telescopic rod is telescopically locked by a fixing bolt 11. The chute is hinged to the fixed rod and the telescopic rod. By adjusting the overall length of the telescopic rod, the inclination angle of the chute can be adjusted, thereby meeting different screening efficiency requirements.
[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A coke screening device, characterized in that: It includes a coke storage hopper, a feeder, a chute, a coke powder collecting hopper and a coke measuring hopper. The coke storage hopper is provided with a discharge port at the bottom, the feeder is arranged below the discharge port, the chute is arranged obliquely at the discharge end of the feeder, a screening grid is provided at the feed end of the chute, a coke powder collecting hopper is provided below the screening grid, and the coke measuring hopper is provided at the discharge end of the chute.
2. The coke screening device according to claim 1, characterized in that: The utility model also comprises a vibrator and a controller. The vibrator is arranged on the chute, and the feeder and the vibrator are both electrically connected to the controller.
3. The coke screening device according to claim 2, characterized in that: It also includes a fixed frame, and the feeder and the chute are both hung and fixed to the fixed frame.
4. The coke screening device according to claim 3, characterized in that: The upper end of the chute is connected to the fixing frame through a fixing rod, and the lower end of the chute is connected to the fixing frame through a telescopic rod.
5. The coke screening device according to claim 4, characterized in that: The telescopic rod is telescopically locked by a fixing bolt.
6. The coke screening device according to claim 5, characterized in that: The inclination angle of the chute is 25° to 30°.