Device for cleaning sintering mixture bin

Abstract

The utility model discloses a device for cleaning a sintering mixture bin, which comprises a water tank, a water inlet pipe, a water inlet one-way valve, a plunger, a water outlet one-way valve, a pressure regulating valve and a spray head, the lower part of the water inlet pipe is immersed in the water tank, the water inlet one-way valve is communicated with the water inlet pipe, the plunger is communicated with the water inlet one-way valve, and the spray head is communicated with the water outlet one-way valve. The water outlet one-way valve is arranged on the plunger in a communicating mode, the pressure regulating valve is arranged on the water outlet one-way valve in a communicating mode, and the spray head is arranged on the pressure regulating valve in a communicating mode. The utility model relates to the field of sintering mixture bin design and use, in particular to a device for cleaning a sintering mixture bin.

Description

Technical Field

[0001] The utility model relates to the field of design and use of sintering mixed material bins, in particular to a device for cleaning sintering mixed material bins. Background Art

[0002] Sintering, the process of converting powdered materials into a dense body, is a traditional process used to produce ceramics, powder metallurgy, refractories, and ultra-high-temperature materials. Generally speaking, the dense body obtained by sintering a powder after forming is a polycrystalline material with a microstructure composed of crystals, glass, and pores. The sintering process directly affects the grain size, pore size, and grain boundary shape and distribution within the microstructure, thereby influencing the material's properties.

[0003] When using solid-phase reactions to prepare inorganic solid compounds, the reaction rate is controlled by the diffusion process, and higher temperatures are often required for the reaction to proceed effectively. Some other solid compounds are composed of solid-liquid phases, and decomposition reactions will occur during melting. Therefore, sintering should generally be carried out below the melting point of the product to ensure a uniform phase. However, the sintering temperature cannot be too low, otherwise the rate of the solid-phase reaction will be too low. In many cases, sintering needs to be carried out in a specific atmosphere. It is very important to control the gas phase partial pressure during the sintering process, especially when the system under study contains ions with variable valence. The gas phase partial pressure of the solid-phase reaction will directly affect the composition and structure of the product.

[0004] Sintering involves heating powdered materials (fine ore and concentrate) at high temperatures and sintering them under incomplete melting conditions to form ore. The resulting sintered ore is a porous aggregate composed of various mineral structures. Mixing silos, as storage and pretreatment sites for sintering raw materials, ensure the fluidity of the materials within them is crucial to the entire production process. Due to factors such as material properties and ambient humidity, material often sticks to the silo's walls and surfaces, complicating cleaning and potentially hindering proper material delivery.

[0005] For a long time, the problem of hanging silos caused by sticking materials in the mixing silo during the sintering production process has not been completely solved. In particular, in the sintering process with a high quicklime ratio, the problem of sticking materials at the bottom of the mixing silo is difficult to remove, which seriously restricts the production of the sintering process and causes the mixing silo to stick and form hoops. It is very easy to cause hanging materials in the mixing silo, which not only affects the shutdown of the main machine, but also poses a high safety risk when handling the hanging materials in the silo. The current method of handling sticking materials in the mixing silo is manual digging of the silo, which is not only time-consuming and inefficient, but also the sticking materials in the silo may collapse during cleaning, and the safety risks of cleaning personnel in a limited space are extremely high. Utility Model Content

[0006] The technical problem to be solved by the utility model is that materials often stick together in the mixing silo of the sintering workshop during the production process, which not only affects the fluidity of the materials but also may lead to a decrease in production efficiency and equipment failure.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is as follows: The present invention is a device for cleaning a sintered mixed material silo, comprising a water pool, a water inlet pipe, a water inlet check valve, a plunger, a water outlet check valve, a pressure regulating valve and a nozzle. The lower part of the water inlet pipe is immersed in the water pool, the water inlet check valve is connected to the water inlet pipe, the plunger is connected to the water inlet check valve, the water outlet check valve is connected to the plunger, the pressure regulating valve is connected to the water outlet check valve, and the nozzle is connected to the pressure regulating valve.

[0008] Furthermore, the water inlet one-way valve is provided in multiple groups, the plunger is provided in multiple groups, and the water outlet one-way valve is provided in multiple groups.

[0009] A method for cleaning a sintering mixed material bin device comprises the following steps:

[0010] Step 1: Install the high-pressure water gun nozzle on the connectable hollow pipe and adjust the pipe length;

[0011] Step 2: During normal production, turn off the steam in the mixing silo;

[0012] Step 3: Place the shuttle trolley in the middle of the mixing silo to discharge the material;

[0013] Step 4: Use a homemade pipe to flush the side wall of the mixed material silo from top to bottom, and adjust the length of the homemade pipe according to the position of the mixed material silo until the mixed material silo is empty and the side wall of the silo is clean.

[0014] Furthermore, in step three, the vehicle needs to be powered off and registered.

[0015] Preferably, the parameters of the high-pressure water gun nozzle are as follows:

[0016]

[0017] The beneficial effects achieved by the utility model using the above structure are as follows:

[0018] Ensure the personal safety of cleanup personnel.

[0019] No need to manually dig the feed bin, reducing labor costs.

[0020] Extend the service life of the mixing silo lining, eliminate the need for continuous silo shaking and reduce material sticking.

[0021] Reduce the time of material downtime for maintenance; basically eliminate production accidents caused by suspended materials in the mixed material silo affecting the shutdown of the main machine.

[0022] Through experiments and field applications, it has been demonstrated that high-pressure water gun nozzle cleaning technology has significant advantages in improving cleaning efficiency, reducing labor intensity and ensuring production continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a device for cleaning a sintering mixed material bin proposed in the present invention;

[0024] Among them, 1. Water pool, 2. Water inlet pipe, 3. Water inlet check valve, 4. Plunger, 5. Water outlet check valve, 6. Pressure regulating valve, 7. Nozzle. DETAILED DESCRIPTION

[0025] Example: As shown in the attached specification Figure 1 As shown, the utility model is a device for cleaning a sintering mixed material silo, comprising a water tank 1, a water inlet pipe 2, a water inlet check valve 3, a plunger 4, a water outlet check valve 5, a pressure regulating valve 6, and a nozzle 7. The lower portion of the water inlet pipe 2 is immersed in the water tank 1. The water inlet check valve 3 is connected to the water inlet pipe 2, the plunger 4 is connected to the water inlet check valve 3, the water outlet check valve 5 is connected to the plunger 4, the pressure regulating valve 6 is connected to the water outlet check valve 5, and the nozzle 7 is connected to the pressure regulating valve 6. The nozzle 7 becomes a high-pressure water gun nozzle after initial pressurization. There are multiple sets of water inlet check valves 3, multiple sets of plungers 4, and multiple sets of water outlet check valves 5.

[0026] A method for using a device for cleaning a sintering mixed material bin comprises the following steps:

[0027] Step 1: Install the high-pressure water gun nozzle on the connectable hollow pipe and adjust the pipe length;

[0028] Step 2: During normal production, turn off the steam in the mixing silo;

[0029] Step 3: Place the shuttle trolley in the middle of the mixing silo to discharge the material. The trolley must be powered off and marked;

[0030] Step 4: Use a homemade pipe to flush the side wall of the mixed material silo from top to bottom, and adjust the length of the homemade pipe according to the position of the mixed material silo until the mixed material silo is empty and the side wall of the silo is clean.

[0031] Experiments were designed to evaluate the cleaning effect of this design, including indicators such as material flowability before and after cleaning, cleaning efficiency, and equipment loss, as shown in Table 1.

[0032] time Counterweight (t / h) Quicklime ratio (%) Number of suspensions (times) Number of high-pressure water gun nozzle cleanings (times) Effective operation rate (%) Output (t) Cleaning labor costs (working hours) July 592 6.54 4 0 99.87 333127 84 August 604 5.97 2 4 99.57 333008 58 September 628 6.5 0 4 99.93 326691 0

[0033] Table 1

[0034] From July to September, this design enabled early intervention to clean the mixed material silo, which reduced the amount of suspended material, increased the effective operation rate, and reduced labor costs.

[0035] This cleaning technology was applied in actual production, and various data during the cleaning process were recorded and compared with traditional cleaning methods, as shown in Table 2 below.

[0036]

[0037] Table 2

[0038] Traditional manual excavation and cleaning requires working from top to bottom in a confined space, which poses the risk of injury from sticking and collapsing materials during excavation, as well as the need to work in a harsh, hot environment. Manual cleaning also takes a long time and is inefficient, requiring the machine to be shut down for processing, affecting production time. However, the use of high-pressure water gun nozzles for cleaning does not require working in a confined space. During normal production, workers can implement the cleaning plan around the top of the mixed material silo, which does not affect the continuity of the sintering process, saves labor costs, and has a high safety factor.

[0039] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for cleaning a sintering mixed material silo, characterized by: It includes a water pool, a water inlet pipe, a water inlet one-way valve, a plunger, a water outlet one-way valve, a pressure regulating valve and a nozzle. The lower part of the water inlet pipe is immersed in the water pool. The water inlet one-way valve is connected to the water inlet pipe, the plunger is connected to the water inlet one-way valve, the water outlet one-way valve is connected to the plunger, the pressure regulating valve is connected to the water outlet one-way valve, and the nozzle is connected to the pressure regulating valve.

2. The device for cleaning a sintering mixed material bin according to claim 1, characterized in that: The water inlet one-way valve is provided in multiple groups, the plunger is provided in multiple groups, and the water outlet one-way valve is provided in multiple groups.

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