A multi-stage hybrid preheating feeding device and its usage method

Abstract

The present invention discloses a multi-stage hybrid preheating feeding device, which is composed of a primary storage system, a first-stage mixing system, a second-stage mixing system, a third-stage mixing system, a ventilation system and a water-passing wall surface; the primary storage system includes a primary storage chamber and a sliding baffle, the primary storage chamber is provided with a plurality of storage areas, and a sliding baffle is arranged below the primary storage chamber; the first-stage mixing system includes a first-stage mixing chamber, a concave wall and a sliding skateboard; the second-stage mixing system includes a second-stage mixing chamber, a convex wall and a sliding skateboard; the third-stage mixing system includes a third-stage mixing chamber, a concave wall and a sliding skateboard; the ventilation system is connected to the second-stage mixing system; the ventilation pipeline is connected to a dust removal cloth bag; the water-passing wall surface surrounds the outer wall surface of the entire feeding device. The present invention makes the material mixing more uniform by using a multi-stage mixing system, and at the same time uses the secondary "cooling water" used by the melting furnace, improves the energy utilization rate and increases the economic benefits.

Description

Technical Field

[0001] The present invention belongs to the field of metallurgical chemistry, and particularly relates to a multi-stage mixing preheating feeding device. Background Art

[0002] With the development of the national economy and the increasing intensity of environmental protection, enclosed feeding devices have gradually become the first choice for various factories. At the same time, with the gradual increase in energy pressure, how to carry out energy conservation and emission reduction work is also a problem that every enterprise needs to consider.

[0003] As a common device in chemical enterprises, how to organically combine energy conservation and environmental protection is an urgent problem to be solved. Therefore, various feeding devices have emerged one after another. For example, Patent No.: 202010687144.4 discloses a blanking conduit for a feeding device, its processing method, and a feeding device. This device is provided with a plurality of guiding members for mixing and transporting materials. This method has relatively limited mixing ability for materials, and at the same time, the materials are not preheated to a certain extent, resulting in a large temperature drop caused by the added materials, thereby increasing energy consumption. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the present invention provides a multi-stage mixing preheating feeding device and a using method, thereby increasing the mixing degree of materials, preheating the added materials by using waste gas and waste water at the same time, reducing the temperature drop caused by the added materials, improving the energy utilization rate, and increasing economic benefits.

[0005] Therefore, the solution adopted by the present invention is:

[0006] A multi-stage hybrid preheating feeding device, characterized in that it consists of a primary storage system (1), a first-stage mixing system (2), a second-stage mixing system (3), a third-stage mixing system (4), a ventilation system (5) and a water-passing wall surface (6); the primary storage system (1) includes a primary storage chamber (11) and a sliding baffle (12), the primary storage chamber (11) is provided with a plurality of storage areas, and a sliding baffle (12) is provided below the primary storage chamber (11); the first-stage mixing system (2) includes a first-stage mixing chamber (21), a concave wall (22) and a sliding baffle (12); the first-stage mixing system (2) is entirely located below the primary storage system (1); the first-stage mixing chamber (21) is surrounded by the concave wall (22) all around, and a sliding baffle (12) is provided at the bottom of the concave wall (22); the second-stage mixing system (3) includes a second-stage mixing chamber (31), a convex wall (32) and a sliding baffle (12); the second-stage mixing system (3) is entirely located below the first-stage mixing system (2); the second-stage mixing chamber (31) is divided into two areas by the convex wall (32), and a sliding baffle (12) is provided on each side of the convex wall (32); the convex wall (32) is triangular and is located in the middle area of the entire feeding device; the third-stage mixing system (4) includes a third-stage mixing chamber (41), a concave wall (22) and a sliding baffle (12); the third-stage mixing system (4) is entirely located below the second-stage mixing system (3); the third-stage mixing chamber (41) is surrounded by the concave wall (22) all around, and a sliding baffle (12) is provided at the bottom of the concave wall (22); the ventilation system (5) includes a ventilation pipe (51) and a dust removal cloth bag (52); the ventilation system (5) is connected to the second-stage mixing system (3); the ventilation pipe (51) is connected to the dust removal cloth bag (52); the water-passing wall surface (6) surrounds the outer wall surface of the entire feeding device.

[0007] Usage method: Place the materials to be added in the primary storage chamber, open the sliding baffle, so that the materials in different storage chambers are mixed in the first-stage mixing chamber, converge at the bottom of the concave wall, and then open the sliding baffle at the bottom of the concave wall, so that the preliminarily mixed materials fall into the second-stage mixing chamber and are secondarily mixed through the diversion of the convex wall; during this period, the water-passing wall surface is continuously supplied with the heated secondary "cooling water" used by the melting furnace, and at the same time, open the ventilation pipe to introduce gas at a certain temperature to heat the materials in the second-stage mixing chamber; when feeding, open the sliding baffles on both sides of the convex wall to make the secondarily mixed materials fall into the third-stage mixing chamber, and finally open the sliding baffle at the bottom of the third-stage mixing chamber to add the materials into the required melting furnace.

[0008] The following will further illustrate the concept, specific structure and technical effects generated by the present invention in conjunction with the drawings, so as to fully understand the purpose, features and effects of the present invention. Brief Description of the Drawings

[0009] Figure 1This is a schematic structural diagram of an embodiment of the present invention.

[0010] 11 - Primary storage chamber, 12 - Sliding baffle, 21 - First-stage mixing chamber, 22 - Concave wall, 31 - Second-stage mixing chamber, 32 - Convex wall, 41 - Third-stage mixing chamber, 51 - Dust removal cloth bag, 52 - Ventilation pipe, 6 - Water-passing wall surface. Detailed implementation manners

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0012] As Figure 1 shown, a multi-stage mixing and preheating feeding device is composed of a primary storage system (1), a first-stage mixing system (2), a second-stage mixing system (3), a third-stage mixing system (4), a ventilation system (5) and a water-passing wall surface (6); the primary storage system (1) includes a primary storage chamber (11) and a sliding baffle (12), the primary storage chamber (11) is provided with a plurality of storage areas, and a sliding baffle (12) is provided below the primary storage chamber (11); the first-stage mixing system (2) includes a first-stage mixing chamber (21), a concave wall (22) and a sliding baffle (12); the first-stage mixing system (2) is entirely located below the primary storage system (1); the first-stage mixing chamber (21) is surrounded by the concave wall (22) on all sides, and a sliding baffle (12) is provided at the bottom of the concave wall (22); the second-stage mixing system (3) includes a second-stage mixing chamber (31), a convex wall (32) and a sliding baffle (12); the second-stage mixing system (3) is entirely located below the first-stage mixing system (2); the second-stage mixing chamber (31) is divided into two areas by the convex wall (32), and a sliding baffle (12) is provided on each side of the convex wall (32); the convex wall (32) is triangular and is located in the middle area of the entire feeding device; the third-stage mixing system (4) includes a third-stage mixing chamber (41), a concave wall (22) and a sliding baffle (12); the third-stage mixing system (4) is entirely located below the second-stage mixing system (3); the third-stage mixing chamber (41) is surrounded by the concave wall (22) on all sides, and a sliding baffle (12) is provided at the bottom of the concave wall (22); the ventilation system (5) includes a ventilation pipe (51) and a dust removal cloth bag (52); the ventilation system (5) is connected to the second-stage mixing system (3); the ventilation pipe (51) is connected to the dust removal cloth bag (52); the water-passing wall surface (6) surrounds the outer wall surface of the entire feeding device.

[0013] Place the materials to be added in the primary storage chamber (11), open the sliding baffle (12), mix the materials in different storage chambers in the first-stage mixing chamber (21), converge at the bottom of the concave wall, and then open the sliding baffle (12) at the bottom of the concave wall to make the preliminarily mixed materials fall into the second-stage mixing chamber (31), and perform secondary mixing through the diversion of the convex wall (32); during this period, the water-passing wall surface (6) is continuously supplied with the heated secondary "cooling water" used by the melting furnace, and at the same time, open the ventilation pipeline (51) to introduce gas at a certain temperature to heat the materials in the second-stage mixing chamber (31); when adding materials, open the sliding baffles on both sides of the convex wall (32) to make the secondarily mixed materials fall into the third-stage mixing chamber (41), and finally open the sliding baffle (12) at the bottom of the third-stage mixing chamber (41) to add the materials into the required melting furnace.

[0014] In this embodiment, taking the production process of adding alloy materials to a 40-ton ladle refining as an example, a multi-stage mixing and preheating feeding device adopts the multi-stage mixing and preheating feeding device, and includes the following steps:

[0015] Place the materials to be added in the primary storage chamber (11), open the sliding baffle (12), mix the materials in different storage chambers in the first-stage mixing chamber (21), converge at the bottom of the concave wall, and then open the sliding baffle (12) at the bottom of the concave wall to make the preliminarily mixed materials fall into the second-stage mixing chamber (31), and perform secondary mixing through the diversion of the convex wall (32); during this period, the water-passing wall surface (6) is continuously supplied with the heated secondary "cooling water" used by the melting furnace, and at the same time, open the ventilation pipeline (51) to introduce gas at a certain temperature to heat the materials in the second-stage mixing chamber (31); when adding materials, open the sliding baffles on both sides of the convex wall (32) to make the secondarily mixed materials fall into the third-stage mixing chamber (41), and finally open the sliding baffle (12) at the bottom of the third-stage mixing chamber (41) to add the materials into the refining furnace.

[0016] After actual testing, the average temperature drop per furnace is reduced by 20 °C, and the average power consumption is reduced by 5%. The device of the present invention can be used repeatedly, and the cost is controllable.

[0017] The solutions in the embodiments are not intended to limit the patent protection scope of the present invention. Any equivalent implementation or modification without departing from the present invention is included in the patent scope of this case.

Claims

1. A multi-stage hybrid preheating feeding device, characterized in that: It is composed of a primary storage system (1), a first-stage mixing system (2), a second-stage mixing system (3), a third-stage mixing system (4), a ventilation system (5) and a water-cooled wall surface (6). The primary storage system (1) includes a primary storage chamber (11) and a sliding baffle (12). The primary storage chamber (11) is provided with a plurality of storage areas, and a sliding baffle (12) is provided below the primary storage chamber (11). The first-stage mixing system (2) includes a first-stage mixing chamber (21), a concave wall (22) and a sliding baffle (12). The first-stage mixing system (2) is entirely located below the primary storage system (1). The first-stage mixing chamber (21) is surrounded by the concave wall (22), and a sliding baffle (12) is provided at the bottom of the concave wall (22). The second-stage mixing system (3) includes a second-stage mixing chamber (31), a convex wall (32) and a sliding baffle (12). The second-stage mixing system (3) is entirely located below the first-stage mixing system (2). The second-stage mixing chamber (31) is divided into two areas by the convex wall (32), and sliding baffles (12) are provided on both sides of the convex wall (32). The convex wall (32) is triangular and is located in the middle area of the entire feeding device. The third-stage mixing system (4) includes a third-stage mixing chamber (41), a concave wall (22) and a sliding baffle (12). The third-stage mixing system (4) is entirely located below the second-stage mixing system (3). The third-stage mixing chamber (41) is surrounded by the concave wall (22), and a sliding baffle (12) is provided at the bottom of the concave wall (22). The ventilation system (5) includes a ventilation pipe (51) and a dust removal cloth bag (52). The ventilation system (5) is connected to the second-stage mixing system (3). The ventilation pipe (51) is connected to the dust removal cloth bag (52). The water-cooled wall surface (6) surrounds the outer wall surface of the entire feeding device.

2. A method for using a multi-stage hybrid preheating and feeding device as described in claim 1, characterized in that: Place the required materials to be added in the primary storage chamber (11), open the sliding baffle (12) below the primary storage chamber (11), so that the materials in different storage chambers are mixed in the first-stage mixing chamber (21) and converge at the bottom of the concave wall (22). Then open the sliding baffle (12) at the bottom of the concave wall (22) to make the preliminarily mixed materials fall into the second-stage mixing chamber (31) and be secondarily mixed through the diversion of the convex wall (32). During this period, the water-cooled wall surface (6) is continuously supplied with the heated secondary "cooling water" used by the smelting furnace. At the same time, open the ventilation pipe (51) to introduce a gas at a certain temperature to heat the materials in the second-stage mixing chamber (31). When feeding, open the sliding baffles (12) on both sides of the convex wall (32) to make the secondarily mixed materials fall into the third-stage mixing chamber (41), and finally open the sliding baffle (12) at the bottom of the third-stage mixing chamber (41) to add the materials into the required smelting furnace.

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