Roasting equipment for producing chromium sesquioxide by using chromium-containing waste

Abstract

The utility model discloses roasting equipment for producing chromium sesquioxide from chromium-containing waste, which comprises a support frame, a plurality of support legs arranged at the bottom end of the support frame, a chimney arranged in the middle of the support frame, a roasting furnace arranged at the bottom end of the chimney, a material conveying pipe arranged on one side of the roasting furnace, and a feeding hopper arranged at the other end of the material conveying pipe. A bin door is arranged at one end of the roasting furnace, an observation window is arranged in the middle of the bin door, an ignition gun is arranged on the other side of the roasting furnace, an exhaust port is formed in the top end of the chimney, and a filtering device is arranged at the top end of the exhaust port. An air inlet is formed in one side of the air chamber, a slag discharging opening is formed in the middle of the bottom end of the air chamber, a partition plate is arranged at the top end of the air chamber, and a plurality of filtering holes are formed in the surface of the partition plate. Through the arrangement of the air chamber, the air chamber is fixedly connected to the bottom end of the roasting furnace during use, and then sufficient oxygen is provided for the roasting furnace through the air inlet, so that substances in the roasting furnace are combusted more sufficiently, and the production rate of chromic oxide is further increased.

Description

Technical Field

[0001] The utility model relates to the field of chromium trioxide production, in particular to a roasting device for producing chromium trioxide from chromium-containing waste. Background Art

[0002] Chromium trioxide is an inorganic compound with the chemical formula Cr2O3. It is a green crystalline powder. It is insoluble in water, acid and alkali solutions, but soluble in hot alkali metal bromate solutions. It is mainly used for coloring ceramics and enamels, and can also be used as an analytical reagent and catalyst.

[0003] The existing roasting equipment for producing chromium trioxide from chromium-containing waste cannot achieve good air circulation inside and outside during combustion and heating, resulting in insufficient internal oxygen and incomplete combustion, which in turn affects the production effect of chromium trioxide. In addition, the existing roasting equipment for producing chromium trioxide from chromium-containing waste will produce harmful gases during the combustion production process, which cannot be filtered and are discharged into the air, which will pollute the environment and is not very environmentally friendly. Utility Model Content

[0004] The utility model discloses a roasting device for producing chromium trioxide by using chromium-containing waste, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: the roasting equipment for producing chromium trioxide from chromium-containing waste includes:

[0006] A support frame, a plurality of legs are arranged at the bottom end of the support frame, a chimney is arranged in the middle of the support frame, a roasting furnace is arranged at the bottom end of the chimney, a material delivery pipe is arranged on one side of the roasting furnace, a material feeding hopper is arranged at the other end of the material delivery pipe, a warehouse door is arranged at one end of the roasting furnace, an observation window is arranged in the middle of the warehouse door, an ignition gun is arranged on the other side of the roasting furnace, an exhaust port is arranged at the top of the chimney, and a filtering device is arranged at the top of the exhaust port;

[0007] The wind chamber has an air inlet on one side, a slag discharge port in the middle of the bottom of the wind chamber, a partition on the top of the wind chamber, and a plurality of filter holes on the surface of the partition.

[0008] Preferably, a plurality of legs are fixedly connected to the bottom end of the support frame, a chimney is fixedly connected to the middle part of the support frame, and a roasting furnace is fixedly connected to the bottom end of the chimney.

[0009] Preferably, a material delivery pipe is fixedly connected to one side of the roasting furnace, a material feeding hopper is fixedly connected to the other end of the material delivery pipe, and an ignition gun is fixedly connected to the other side of the roasting furnace.

[0010] Preferably, a warehouse door is rotatably connected to one end of the roasting furnace, and an observation window is fixedly connected to the middle of the warehouse door.

[0011] Preferably, a wind chamber is fixedly connected to the bottom end of the roasting furnace, an air inlet is fixedly connected to one side of the wind chamber, and a slag discharge port is fixedly connected to the middle of the bottom end of the wind chamber.

[0012] Preferably, a partition is fixedly connected to the top of the air chamber, and a plurality of filter holes are evenly opened on the surface of the partition.

[0013] Preferably, the top of the chimney is fixedly connected with an exhaust port, and the top of the exhaust port is fixedly connected with a filtering device.

[0014] The beneficial effects of the utility model are as follows: through the setting of the wind chamber, when in use, the wind chamber is fixedly connected to the bottom end of the roasting furnace, and then sufficient oxygen is provided to the roasting furnace through the air inlet, so that the material in the roasting furnace burns more completely, thereby accelerating the production rate of chromium trioxide; through the setting of the filtering device, when in use, the filtering device is fixedly connected to the top of the exhaust port, and the filtering device contains activated carbon and other adsorption filtering materials, so as to achieve the effect of filtering and purifying the generated harmful gases and then discharging them, thereby reducing air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a front structural schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the wind chamber structure of the utility model.

[0020] In the figure: 1, support frame; 101, support leg; 2, chimney; 3, roasting furnace; 4, feed pipe; 5, feed hopper; 6, warehouse door; 7, observation window; 8, ignition gun; 9, wind chamber; 10, air inlet; 11, slag discharge port; 12, partition; 1201, filter hole; 13, exhaust port; 14, filter device. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0022] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0023] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 a limitation on the present invention.

[0024] In the present utility model, 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 directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0026] See also Figures 1 to 4 The utility model provides a technical solution: the roasting equipment for producing chromium trioxide from chromium-containing waste includes:

[0027] A support frame 1, a plurality of legs 101 are provided at the bottom end of the support frame 1, a chimney 2 is provided in the middle of the support frame 1, a roasting furnace 3 is provided at the bottom end of the chimney 2, a material delivery pipe 4 is provided on one side of the roasting furnace 3, a material inlet hopper 5 is provided at the other end of the material delivery pipe 4, a warehouse door 6 is provided at one end of the roasting furnace 3, an observation window 7 is provided in the middle of the warehouse door 6, an ignition gun 8 is provided on the other side of the roasting furnace 3, an exhaust port 13 is provided at the top end of the chimney 2, and a filter device 14 is provided at the top end of the exhaust port 13;

[0028] The wind chamber 9 has an air inlet 10 on one side thereof, a slag discharge port 11 in the middle of the bottom of the wind chamber 9, a partition 12 at the top of the wind chamber 9, and a plurality of filter holes 1201 on the surface of the partition 12.

[0029] A plurality of legs 101 are fixedly connected to the bottom end of the support frame 1 , a chimney 2 is fixedly connected to the middle of the support frame 1 , and a roasting furnace 3 is fixedly connected to the bottom end of the chimney 2 .

[0030] A material delivery pipe 4 is fixedly connected to one side of the roasting furnace 3 , a material feeding hopper 5 is fixedly connected to the other end of the material delivery pipe 4 , and an ignition gun 8 is fixedly connected to the other side of the roasting furnace 3 .

[0031] A bin door 6 is rotatably connected to one end of the roasting furnace 3 , and an observation window 7 is fixedly connected to the middle of the bin door 6 .

[0032] The bottom end of the roasting furnace 3 is fixedly connected with a wind chamber 9, one side of the wind chamber 9 is fixedly connected with an air inlet 10, and the middle part of the bottom end of the wind chamber 9 is fixedly connected with a slag discharge port 11.

[0033] A partition plate 12 is fixedly connected to the top of the air chamber 9 , and a plurality of filter holes 1201 are evenly formed on the surface of the partition plate 12 .

[0034] An exhaust port 13 is fixedly connected to the top of the chimney 2 , and a filter device 14 is fixedly connected to the top of the exhaust port 13 .

[0035] When the utility model is in use, the chromium-containing substance is first placed into the roasting furnace 3 through the hopper 5, and then ignited by the ignition gun 8 for combustion reaction. Through the setting of the wind chamber 9, the wind chamber 9 is fixedly connected to the bottom end of the roasting furnace 3 when in use, and then sufficient oxygen is provided to the roasting furnace 3 through the air inlet 10, so that the substance in the roasting furnace 3 is burned more fully, thereby accelerating the production rate of chromium trioxide; through the setting of the filtering device 14, the filtering device 14 is fixedly connected to the top of the exhaust port 13 when in use, and the filtering device 14 contains activated carbon and other adsorption filtering materials, so as to achieve the effect of filtering and purifying the generated harmful gases and then discharging them, thereby reducing air pollution; through the setting of the observation window 7, the observation window 7 is fixedly connected to the middle part of the warehouse door 6 when in use, so that the combustion situation inside the roasting furnace 3 can be observed at any time, and the warehouse door 6 can be opened to take out the chromium trioxide crystals after the combustion is completed.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A roasting equipment for producing chromium trioxide from chromium-containing waste, characterized in that: The roasting equipment for producing chromium trioxide from chromium-containing wastes comprises: A support frame (1), wherein a plurality of legs (101) are arranged at the bottom end of the support frame (1), a chimney (2) is arranged in the middle of the support frame (1), a roasting furnace (3) is arranged at the bottom end of the chimney (2), a material delivery pipe (4) is arranged on one side of the roasting furnace (3), a material inlet hopper (5) is arranged at the other end of the material delivery pipe (4), a chamber door (6) is arranged at one end of the roasting furnace (3), an observation window (7) is arranged in the middle of the chamber door (6), an ignition gun (8) is arranged on the other side of the roasting furnace (3), an exhaust port (13) is arranged at the top end of the chimney (2), and a filtering device (14) is arranged at the top end of the exhaust port (13); A wind chamber (9), an air inlet (10) is arranged on one side of the wind chamber (9), a slag discharge port (11) is arranged in the middle of the bottom end of the wind chamber (9), a partition (12) is arranged at the top end of the wind chamber (9), and a plurality of filter holes (1201) are arranged on the surface of the partition (12).

2. The roasting equipment for producing chromium trioxide from chromium-containing waste according to claim 1, characterized in that: The bottom end of the support frame (1) is fixedly connected to a plurality of legs (101), the middle part of the support frame (1) is fixedly connected to a chimney (2), and the bottom end of the chimney (2) is fixedly connected to a roasting furnace (3).

3. The roasting equipment for producing chromium trioxide from chromium-containing waste according to claim 1, characterized in that: One side of the roasting furnace (3) is fixedly connected to a feed pipe (4), the other end of the feed pipe (4) is fixedly connected to a feed hopper (5), and the other side of the roasting furnace (3) is fixedly connected to an ignition gun (8).

4. The roasting equipment for producing chromium trioxide from chromium-containing waste according to claim 1, characterized in that: One end of the roasting furnace (3) is rotatably connected to a bin door (6), and the middle of the bin door (6) is fixedly connected to an observation window (7).

5. The roasting equipment for producing chromium trioxide from chromium-containing waste according to claim 1, characterized in that: The bottom end of the roasting furnace (3) is fixedly connected to a wind chamber (9), one side of the wind chamber (9) is fixedly connected to an air inlet (10), and the middle of the bottom end of the wind chamber (9) is fixedly connected to a slag discharge port (11).

6. The roasting equipment for producing chromium trioxide from chromium-containing waste according to claim 1, characterized in that: A partition plate (12) is fixedly connected to the top of the air chamber (9), and a plurality of filter holes (1201) are evenly arranged on the surface of the partition plate (12).

7. The roasting equipment for producing chromium trioxide from chromium-containing waste according to claim 1, characterized in that: The top end of the chimney (2) is fixedly connected to an exhaust port (13), and the top end of the exhaust port (13) is fixedly connected to a filtering device (14).

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