Fog gun device for zinc smelting

Abstract

The utility model relates to a fog gun device for zinc smelting, which comprises a fog gun tube, two ends of the fog gun tube are closed by steel plates, a plurality of fog gun outlet holes are formed in the steel plate at one end, a round hole is formed in the steel plate at the other end, and a through hole is formed in the side wall of the fog gun tube; the water passing inner pipe is inserted into the fog gun pipe through the round hole, and a first ball valve is arranged on the water passing inner pipe; the ventilation inner pipe is inserted into the fog gun pipe through the through hole, and a second ball valve is arranged on the ventilation inner pipe. Water is introduced into the water passing inner pipe, high-pressure air is introduced into the ventilation inner pipe, under the thrust action of the high-pressure air, the water is sprayed out through the mist gun outlet holes to form water mist particles, the water mist particles fall into the zinc concentrate, the spraying purpose is achieved, the water amount is controlled by controlling opening and closing and the opening degree of the first ball valve and the second ball valve, and the spraying efficiency is improved. The spraying is more uniform, and the humidity of the zinc concentrate meets the standard, so that the ore blending quality is ensured, and the problems that the zinc concentrate enters a fluidized bed furnace, is large in dust amount and is burnt and bonded are solved.

Description

Technical Field

[0001] The present application relates to the technical field of zinc smelting equipment, and in particular to a fog cannon used for zinc smelting. Background Art

[0002] There are two processes for zinc smelting: pyrometallurgy and hydrometallurgy. The closed blast furnace smelting of lead and zinc is the most important and almost the only pyrometallurgy method for zinc smelting in the world. Its technical development mainly includes adding treatment measures for secondary lead-zinc materials; improving condensation efficiency; and using oxygen-enrichment technology.

[0003] Hydrometallurgy is the most important zinc smelting method in the world today. Hydrometallurgy technology has developed rapidly, mainly in the following aspects: direct oxygen pressure leaching of zinc sulfide concentrate; direct oxygen-enriched leaching of zinc sulfide concentrate at normal pressure; large-scale and efficient equipment; comprehensive recovery and harmless treatment of leaching slag; automatic control system of process, etc.

[0004] In the process of wet zinc smelting, the zinc concentrate used is fine and dry. After entering the boiling furnace, there is a large amount of dust, and there are problems of burning and sticking. In traditional technology, operators are usually arranged to spray water when mixing the ore, but manual spraying is difficult to control the amount of water, which can easily lead to uneven spraying, thus affecting the quality of the ore mixing. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a fog cannon for zinc smelting.

[0006] To achieve the above objectives, this application is implemented through the following technical solutions:

[0007] A mist cannon for zinc smelting, the mist cannon for zinc smelting comprising:

[0008] A fog cannon pipe, both ends of which are closed by steel plates, a plurality of fog cannon outlet holes are opened on the steel plate at one end, a circular hole is opened on the steel plate at the other end, and a through hole is opened on the side wall of the fog cannon pipe;

[0009] The water-passing inner pipe is inserted into the fog cannon pipe through the circular hole and is provided with a first ball valve;

[0010] The inner ventilation pipe is inserted into the fog cannon pipe through the through hole and is provided with a second ball valve.

[0011] Optionally, the connection between the water inner tube and the circular hole is fixed by welding, and the connection between the ventilation inner tube and the through hole is fixed by welding.

[0012] Optionally, one end of the inner water pipe away from the fog cannon pipe is connected to a water pump.

[0013] Optionally, one end of the inner ventilation pipe away from the fog cannon pipe is connected to a compression fan.

[0014] Optionally, the first ball valve and the second ball valve are both DN15 stainless steel ball valves.

[0015] Optionally, the aperture of the fog cannon outlet is 2 mm.

[0016] Optionally, the inner water tube is slidably connected to the circular hole at a connection point, and a pair of bolts are symmetrically provided on the side wall of the fog cannon tube, and the inner water tube is fixed in the fog cannon tube by rotating the bolts.

[0017] The beneficial effects of the present application are as follows: the present application introduces water into the water inner pipe and high-pressure air into the ventilation inner pipe. Under the thrust of the high-pressure air, water is sprayed out through a number of fog cannon outlets to form water mist particles, and falls into the zinc concentrate to achieve the purpose of spraying. The opening and closing and the opening degree of the first ball valve and the second ball valve are controlled to control the water volume, so that the spraying is more uniform, and the humidity of the zinc concentrate meets the standard, thereby ensuring the quality of the ore blending, and further avoiding the problem of large amount of dust after the zinc concentrate enters the boiling furnace, resulting in burning and sticking.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1 It is a structural schematic diagram of a fog cannon for zinc smelting shown in Example 1 of the present application;

[0021] Figure 2 It is a structural schematic diagram of the fog cannon outlet hole shown in the first embodiment of the present application;

[0022] Figure 3 It is a schematic diagram of the structure of a fog cannon for zinc smelting shown in Example 2 of the present application.

[0023] Figure numerals: 1 fog cannon pipe, 2 fog cannon outlet hole, 3 water-passing inner pipe, 4 first ball valve, 5 ventilation inner pipe, 6 second ball valve, 7 bolt. DETAILED DESCRIPTION

[0024] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0029] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0030] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0031] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technical personnel.

[0032] Embodiment 1:

[0033] See also Figure 1 and Figure 2 , a fog cannon for zinc smelting, the fog cannon for zinc smelting comprising:

[0034] A fog cannon pipe 1, both ends of which are closed by steel plates, a plurality of fog cannon outlet holes 2 are opened on the steel plate at one end, a circular hole is opened on the steel plate at the other end, and a through hole is opened on the side wall of the fog cannon pipe 1;

[0035] The water-passing inner pipe 3 is inserted into the fog cannon pipe 1 through the circular hole, and a first ball valve 4 is arranged on the inner pipe;

[0036] The ventilation inner pipe 5 is inserted into the fog cannon pipe 1 through the through hole, and a second ball valve 6 is arranged on the ventilation inner pipe 5.

[0037] The connection between the water inner tube 3 and the circular hole is fixed by welding, and the connection between the ventilation inner tube 5 and the through hole is fixed by welding.

[0038] Specifically, the diameter of the fog cannon tube 1 is 60mm and the length is 1000mm. The steel plates at both ends are circular steel plates with a diameter of 60mm to match the diameter of the fog cannon tube 1. The two steel plates are welded to the two ends of the fog cannon tube 1 respectively. A plurality of fog cannon outlet holes 2 are provided on the steel plate at one end, and a circular hole allowing the water inner tube 3 to pass through is provided on the steel plate at the other end. The diameters of the circular hole and the water inner tube 3 are both 40mm. One end of the water inner tube 3 is inserted into the interior of the fog cannon tube 1 through the circular hole, and a first ball valve 4 is installed on the other end of the tube, and the connection between the water inner tube 3 and the circular hole is fixed by welding; a through hole allowing the ventilation inner tube 5 to pass through is provided on the side wall of the fog cannon tube 1. The diameters of the through hole and the ventilation inner tube 5 are both 40mm. One end of the ventilation inner tube 5 is inserted into the interior of the fog cannon tube 1 through the through hole, and the insertion depth is not more than 10mm to avoid conflict with the water inner tube 3. The connection between the ventilation inner tube 5 and the through hole is fixed by welding, and a second ball valve 6 is installed on the other end of the ventilation inner tube 5;

[0039] When in use, water is introduced into the water inner tube 3, and high-pressure wind is introduced into the ventilation inner tube 5. Under the thrust of the high-pressure wind, water is sprayed out through a number of fog cannon outlets 2 to form water mist particles, and falls into the zinc concentrate to achieve the purpose of spraying. By controlling the opening and closing and the opening degree of the first ball valve 4 and the second ball valve 6, the water volume is controlled to make the spraying more uniform, so that the humidity of the zinc concentrate meets the standard, thereby ensuring the quality of the ore blending, and then avoiding the problem of large amount of dust after the zinc concentrate enters the boiling furnace, causing burning and sticking.

[0040] Further, the adjustment of the first ball valve 4 and the second ball valve 6 is as follows:

[0041] The first ball valve 4 is fully opened, the second ball valve 6 is fully opened, the range of the fog cannon is about 5 meters, and the intensity of the fog cannon is relatively strong;

[0042] The first ball valve 4 is opened 1 / 2, the second ball valve 6 is fully opened, the range of the fog cannon is about 5 meters, and the intensity of the fog cannon is weakened;

[0043] The first ball valve 4 is opened 1 / 2, the second ball valve 6 is opened 1 / 2, the range of the fog cannon is about 3 meters, and the intensity of the fog cannon is relatively weak.

[0044] In addition, the fog cannon of the present application can also improve the on-site environment of the silo, and can also be used to cool down the boiling furnace and increase the processing capacity of the boiling furnace. The equipment is simple to manufacture, flexible to use, and has low manufacturing cost.

[0045] Further and optionally, one end of the water-passing inner tube 3 away from the fog cannon tube 1 is connected to a water pump.

[0046] Specifically, water is pumped into the water-passing inner pipe 3 by a water pump to provide a water source for the fog cannon pipe 1 .

[0047] Further and optionally, one end of the ventilation inner pipe 5 away from the fog cannon pipe 1 is connected to a compression fan.

[0048] Specifically, the compressor fan is used to deliver high-pressure air into the inner ventilation pipe 5 to provide a wind source for the fog cannon pipe 1 .

[0049] Further and optionally, the first ball valve 4 and the second ball valve 6 are both DN15 stainless steel ball valves.

[0050] Specifically, the first ball valve 4 and the second ball valve 6 are selected according to the diameters of the water inner tube 3 and the ventilation inner tube 5. The use of stainless steel ball valves can ensure the corrosion resistance of the ball valves and extend their service life. At the same time, the stainless steel ball valves can be tightly closed by rotating 90 degrees and using a very small torque. The completely equal inner cavity of the valve body provides a very small resistance and straight flow channel for the medium. The ball valve itself has a compact structure and is easy to operate and maintain.

[0051] Further and optionally, the aperture of the fog cannon outlet hole 2 is 2 mm.

[0052] Specifically, the spraying effect of the water mist particles formed by the fog cannon outlet hole 2 with an aperture of 2 mm can meet the requirements.

[0053] Embodiment 2:

[0054] See also Figure 3 Based on the first embodiment, further and optionally, the water-passing inner tube 3 is slidably connected to the connection point of the circular hole, and a pair of bolts 7 are symmetrically provided on the side wall of the fog cannon tube 1, and the water-passing inner tube 3 is fixed in the fog cannon tube 1 by rotating the bolts 7.

[0055] In the present embodiment, another fixing method of the water passing inner tube 3 is provided. Specifically, the connection between the water passing inner tube 3 and the circular hole is slidably connected, so that the water passing inner tube 3 can move in the fog cannon tube 1, thereby changing the extended length of the water passing inner tube 3. When the extended length meets the requirements, the bolts 7 are rotated so that a pair of bolts 7 apply an extrusion force to the water passing inner tube 3, thereby fixing the water passing inner tube 3 in the fog cannon tube 1. In this way, the extended length of the water passing inner tube 3 can be changed according to the working environment, thereby increasing the applicable occasions of the device.

[0056] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application; the dimensions of the drawings are not related to the specific objects, and the dimensions of the objects can be changed arbitrarily.

Claims

1. A mist cannon for zinc smelting, characterized in that: The mist cannon for zinc smelting comprises: A fog cannon pipe (1) is closed at both ends by steel plates, a plurality of fog cannon outlet holes (2) are opened on the steel plate at one end, a circular hole is opened on the steel plate at the other end, and a through hole is opened on the side wall of the fog cannon pipe (1); A water-passing inner pipe (3) is inserted into the fog cannon pipe (1) through the circular hole and is provided with a first ball valve (4); The ventilation inner pipe (5) is inserted into the fog cannon pipe (1) through the through hole and is provided with a second ball valve (6).

2. The mist cannon for zinc smelting as claimed in claim 1, characterized in that: The connection between the water-passing inner tube (3) and the circular hole is fixed by welding, and the connection between the ventilation inner tube (5) and the through hole is fixed by welding.

3. The mist cannon for zinc smelting according to claim 1 or 2, characterized in that: One end of the water-passing inner pipe (3) away from the fog cannon pipe (1) is connected to a water pump.

4. The mist cannon for zinc smelting according to claim 1 or 2, characterized in that: One end of the ventilation inner tube (5) away from the fog cannon tube (1) is connected to a compression fan.

5. The mist cannon for zinc smelting as claimed in claim 1, characterized in that: The first ball valve (4) and the second ball valve (6) are both DN15 stainless steel ball valves.

6. The mist cannon for zinc smelting as claimed in claim 1, characterized in that: The diameter of the fog cannon outlet hole (2) is 2 mm.

7. The mist cannon for zinc smelting as claimed in claim 1, characterized in that: The water-passing inner tube (3) is slidably connected to the connection point of the circular hole, and a pair of bolts (7) are symmetrically arranged on the side wall of the fog cannon tube (1). By rotating the bolts (7), the water-passing inner tube (3) is fixed in the fog cannon tube (1).

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