Furnace inner net structure for metallurgical performance comprehensive experiment reactor

Abstract

The utility model discloses a furnace inner net structure for a metallurgical performance comprehensive experiment reactor. The furnace inner net structure comprises a supporting plate, an annular net plate, a sieve plate and a cover plate, the supporting plate is of a horizontally-arranged annular structure, the outer diameter of the supporting plate is larger than that of the reactor, and the inner diameter of the supporting plate is smaller than that of the reactor; an annular screen plate is vertically, coaxially and fixedly arranged on the lower surface of the supporting plate, the outer diameter of the annular screen plate is smaller than the inner diameter of the reactor, and the inner diameter of the annular screen plate is consistent with the inner diameter of the supporting plate; a circular sieve plate is horizontally and coaxially aligned and fixed on the lower surface of the annular screen plate, and the diameter of the sieve plate is consistent with the outer diameter of the annular screen plate; the supporting plate is horizontally attached to the upper surface of the reactor, and after the annular screen plate and the sieve plate are coaxially inserted into the reactor, the supporting plate and the reactor are screwed and fixed through countersunk bolts; a circular cover plate is horizontally and coaxially screwed on the upper surface of the supporting plate, and the supporting plate is blocked through the cover plate. The in-furnace net structure can be taken out from the reactor through the handle, and mineral aggregate is convenient and fast to pour.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical property detection, and particularly relates to a furnace inner net structure for a comprehensive metallurgical property experiment reactor. Background Art

[0002] Low-temperature reduction degradation is a chemical reaction phenomenon, which refers to the characteristic that iron ore undergoes fragmentation and pulverization during the low-temperature reduction process. In the shaft furnace direct reduction process, the low-temperature reduction pulverization property is one of the key factors determining whether pellets can adapt to the shaft furnace reactor and the composition of the reducing gas. The more serious the pellet pulverization is, the worse the gas permeability of the furnace is. In current metallurgical property experiments, the ore to be experimented is poured into the reactor, the lid is directly covered, and then the experiment is carried out in the reactor. When the experiment is over, the reactor needs to be removed, and the reactor is lifted to pour out the ore material inside. However, due to the tight experimental tasks, the ore material generally needs to be poured out when the temperature reaches below 200°C; this will lead to the following disadvantages: 1) The reactor is at a high temperature. When knocking out the ore material inside the reactor by hand, there is a risk that the experimental personnel will be scalded by the high temperature; 2) The reactor itself weighs more than 15 catties, which is relatively heavy. For the experimental personnel, there is a risk of being dropped and injured; 3) There is a sieve plate inside the reactor. If the reactor is knocked too many times, it is easy to cause the deformation and dropping of the sieve plate. Therefore, the above problems need to be solved urgently. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a furnace inner net structure for a comprehensive metallurgical property experiment reactor. By only disassembling the cover plate and the countersunk head bolts, the furnace inner net structure can be taken out of the reactor through the handle, and the ore material can be poured out conveniently and quickly, thus eliminating the need to knock the reactor and avoiding the risks of high-temperature burns and injury caused by the dropping of the reactor.

[0004] To solve the above technical problem, the utility model adopts the following technical solution: A furnace inner net structure for a comprehensive metallurgical property experiment reactor of the utility model is characterized in that: it includes a support plate, an annular net plate, a sieve plate and a cover plate; the support plate is a horizontally arranged circular ring structure, and its outer diameter is larger than the outer diameter of the reactor, and its inner diameter is smaller than the inner diameter of the reactor; on the lower surface of the support plate, an annular net plate is vertically and coaxially fixed, the outer diameter of the annular net plate is smaller than the inner diameter of the reactor, and its inner diameter is consistent with the inner diameter of the support plate; on the lower surface of the annular net plate, a circular sieve plate is horizontally and coaxially aligned and fixed, and the diameter of the sieve plate is consistent with the outer diameter of the annular net plate; the support plate is horizontally placed on the upper surface of the reactor, and after the annular net plate and the sieve plate are coaxially inserted into the reactor, the support plate is screwed and fixed to the reactor through countersunk head bolts; on the upper surface of the support plate, a circular cover plate is horizontally and coaxially screwed, and the upper end surface of the annular net plate is blocked by the cover plate.

[0005] Preferably, a circular positioning plate is horizontally and coaxially provided on the lower surface of the support plate. The outer diameter of the positioning plate is consistent with that of the support plate and is integrally formed with the support plate. The inner diameter of the positioning plate is larger than the outer diameter of the reactor, and an annular gap is formed between the positioning plate and the reactor, so as to position the action of placing the support plate on the upper surface of the reactor through the positioning plate.

[0006] Preferably, several counterbore holes matching the countersunk bolts are vertically and evenly spaced along the circumferential direction on the upper surface of the support plate at the position corresponding to the wall thickness of the upper surface of the reactor. Each counterbore hole is spaced outside the cover plate, and its small-diameter end is vertically downward and extends vertically out of the lower surface of the support plate respectively. Several threaded holes matching the countersunk bolts are vertically and evenly spaced along the circumferential direction on the wall thickness of the upper surface of the reactor, and the setting position of each threaded hole corresponds to the setting position of each counterbore hole. Thus, the support plate and the reactor are screwed and fixed together through the cooperation of the countersunk bolts, counterbore holes and threaded holes.

[0007] Preferably, the diameter of the cover plate is larger than the inner diameter of the support plate and does not interfere with the screwing action of the countersunk bolts, so as to block the upper end of the annular net plate through the cover plate.

[0008] Preferably, a handle is vertically provided on the upper surface of the support plate near its edge and outside the counterbore holes, and the support plate is lifted and tilted through the handle.

[0009] Preferably, both the annular net plate and the sieve plate are of mesh-like structures, and the pore diameter of the annular net plate is smaller than that of the sieve plate, so as not to affect the heating and temperature rise.

[0010] Preferably, an avoidance net plate is further included. The avoidance net plate is a hollow columnar body structure with mesh holes, and its internal space matches the thermocouple in the reactor. The lower end surface of the avoidance net plate is open, and its upper end surface is a protruding semi-circle. A circular groove is vertically and coaxially embedded in the lower surface of the sieve plate. The diameter of the circular groove is consistent with the outer diameter of the avoidance net plate, and its upper end extends vertically upward out of the upper surface of the sieve plate. The avoidance net plate is vertically and coaxially sleeved in the circular groove, and its lower end surface is coplanar with the lower surface of the sieve plate and is integrally formed with the sieve plate, so as to form an avoidance groove matching the thermocouple in the reactor for the thermocouple to be inserted.

[0011] Preferably, the height of the annular net plate is such that when the support plate and the upper surface of the reactor are screwed and fixed, the thermocouple of the reactor is inserted into the avoidance groove without rubbing against the thermocouple.

[0012] The beneficial effects of the present utility model:

[0013] (1) For this utility model, only the cover plate and the countersunk bolts need to be disassembled, and then the inner furnace net structure can be taken out of the reactor through the handle, making it convenient and fast to pour the ore material. Thus, there is no need to knock on the reactor anymore, avoiding the risks of high-temperature burns and injuries caused by the reactor falling and hitting.

[0014] (2) By setting the avoidance net plate in this utility model, an avoidance groove is formed, avoiding damage to the thermocouple.

[0015] (3) Through the combined use of the support plate and the positioning plate in this utility model, it is convenient for the positioning and installation of the inner furnace net structure, improving the work efficiency. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the use state of the inner furnace net structure for a metallurgical performance comprehensive experimental reactor of this utility model.

[0018] Figure 2 It is Figure 1 an enlarged schematic diagram of part A in

[0019] Figure 3 It is a schematic diagram of the structure of the inner furnace net structure for a metallurgical performance comprehensive experimental reactor of this utility model.

[0020] Among them, 1 - reactor; 2 - thermocouple; 3 - annular net plate; 4 - sieve plate; 5 - avoidance net plate; 6 - support plate; 7 - positioning plate; 8 - handle; 9 - cover plate; 10 - counterbore. Detailed Embodiment

[0021] The technical solutions of this utility model will be clearly and completely described below through specific embodiments.

[0022] The inner furnace net structure for a metallurgical performance comprehensive experimental reactor of this utility model includes a support plate 6, an annular net plate 3, a sieve plate 4, and a cover plate 9; the specific structure is as Figures 1 to 3As shown in the figure, the support plate 6 is a horizontally arranged circular ring structure, and its outer diameter is larger than the outer diameter of the reactor 1, and its inner diameter is smaller than the inner diameter of the reactor 1; on the lower surface of the support plate 6, a circular ring-shaped mesh plate 3 is vertically and coaxially fixed, the outer diameter of the circular ring-shaped mesh plate 3 is smaller than the inner diameter of the reactor 1, and its inner diameter is consistent with the inner diameter of the support plate 6; on the lower surface of the circular ring-shaped mesh plate 3, a circular sieve plate 4 is horizontally and coaxially aligned and fixed, and the diameter of the sieve plate 4 is consistent with the outer diameter of the circular ring-shaped mesh plate 3; the support plate 6 is horizontally placed on the upper surface of the reactor 1, and after the circular ring-shaped mesh plate 3 and the sieve plate 4 are coaxially inserted into the interior of the reactor 1, the support plate 6 is screwed and fixed to the reactor 1 through countersunk bolts.

[0023] As Figures 1 to 3 shown in the figure, on the lower surface of the support plate 6, a circular ring-shaped positioning plate 7 is horizontally and coaxially arranged, and the outer diameter of the positioning plate 7 is consistent with the outer diameter of the support plate 6 and is integrally formed with the support plate 6; the inner diameter of the positioning plate 7 is larger than the outer diameter of the reactor 1, and an annular gap is formed between the positioning plate 7 and the reactor 1, so as to position the action of placing the support plate 6 on the upper surface of the reactor 1 through the positioning plate 7.

[0024] As Figures 1 to 3 shown in the figure, on the upper surface of the support plate 6, several countersunk holes 10 matching the countersunk bolts are vertically and evenly spaced along the circumferential direction at the position corresponding to the wall thickness of the upper surface of the reactor 1. Each countersunk hole 10 is spaced outside the cover plate 9, and its small-diameter end is vertically downward and respectively vertically extends out of the lower surface of the support plate 6; on the wall thickness of the upper surface of the reactor 1, several threaded holes matching the countersunk bolts are vertically and evenly spaced along the circumferential direction, and the setting position of each threaded hole corresponds to the setting position of each countersunk hole 10. Thus, the support plate 6 is screwed and fixed to the reactor 1 through the cooperation of the countersunk bolts, the countersunk holes 10 and the threaded holes.

[0025] As Figures 1 to 3 shown in the figure, on the upper surface of the support plate 6, a circular cover plate 9 is horizontally and coaxially screwed. The diameter of the cover plate 9 is larger than the inner diameter of the support plate 6 and does not interfere with the screwing action of the countersunk bolts. Thus, the upper end of the circular ring-shaped mesh plate 3 is blocked by the cover plate 9.

[0026] As Figures 1 to 3 shown in the figure, on the upper surface of the support plate 6, near its edge and outside the countersunk holes 10, a handle 8 is vertically arranged, and the support plate 6 is lifted and tilted through the handle 8.

[0027] Both the circular ring-shaped mesh plate 3 and the sieve plate 4 of the present utility model are mesh-like structures, and the mesh aperture of the circular ring-shaped mesh plate 3 is smaller than the mesh aperture of the sieve plate 4, thus having no influence on heating and temperature rise; As Figures 1 to 3As shown, the avoidance grid plate 5 is a hollow columnar structure with a mesh shape, and its internal space matches the thermocouple 2 inside the reactor 1. The lower end face of the avoidance grid plate 5 is open, and its upper end face is a protruding semi-circle. A circular groove is vertically and coaxially embedded and opened on the lower surface of the sieve plate 4. The diameter of the circular groove is consistent with the outer diameter of the avoidance grid plate 5, and its upper end extends vertically upward from the upper surface of the sieve plate 4. The avoidance grid plate 5 is vertically and coaxially sleeved in the circular groove, and its lower end face is coplanar with the lower surface of the sieve plate 4 and integrally formed with the sieve plate 4, thereby forming an avoidance groove that matches the thermocouple 2 inside the reactor 1 for the thermocouple 2 to be inserted, so as to better monitor the experimental data. Among them, the height of the annular grid plate 3 needs to ensure that when the support plate 6 is screwed and fixed to the upper surface of the reactor 1, the thermocouple 2 of the reactor 1 is inserted into the avoidance groove and does not rub against the thermocouple 2.

[0028] The working principle of the present utility model: When conducting the pulverization reduction experiment, first pour the ore into the annular grid plate 3 of the inner furnace structure, then horizontally place the support plate 6 on the upper surface of the reactor 1. After ensuring that the annular grid plate 3 and the sieve plate 4 are coaxially inserted into the inside of the reactor 1, then screw and fix the support plate 6 to the reactor 1 through the countersunk head bolts. At this time, the thermocouple 2 is inserted into the avoidance groove; then seal the upper end of the annular grid plate 3 by screwing the cover plate 9 to the support plate 6; then place the reactor 1 on the upper and lower sliding tables and conduct the experiment in the furnace body along with the upper and lower sliding tables; after the experiment is over, the reactor 1 leaves the furnace body. After cooling down to 200 °C, remove the reactor 1, then disassemble the cover plate 9 and the countersunk head bolts, and take out the support plate 6, the annular grid plate 3, and the sieve plate 4 part from the reactor 1 through the handle 8, and then pour it, so that there is no need to pour or knock the reactor 1 again, which is labor-saving and safe.

[0029] The beneficial effects of the present utility model:

[0030] (1) For the present utility model, only by disassembling the cover plate 9 and the countersunk head bolts, the inner furnace structure can be taken out of the reactor 1 through the handle 8, and it is convenient and fast to pour the ore, so there is no need to knock the reactor 1 again, avoiding the risks of high-temperature burns and the reactor 1 falling and injuring people;

[0031] (2) The present utility model forms an avoidance groove by setting the avoidance grid plate 5, avoiding damage to the thermocouple 2;

[0032] (3) Through the combined use of the support plate 6 and the positioning plate 7, the present utility model facilitates the positioning and installation of the inner furnace structure and improves the work efficiency.

[0033] The embodiments described above are only described as the preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, various modifications and improvements made by ordinary engineering and technical personnel in the field to the technical solutions of the present utility model shall fall within the protection scope of the present utility model. The technical content for which the present utility model requests protection has been fully recorded in the claims.

Claims

1. A furnace network structure for a metallurgical performance comprehensive experimental reactor, characterized in that: It includes a support plate, an annular mesh plate, a sieve plate and a cover plate; the support plate is a horizontally arranged circular ring structure, and its outer diameter is larger than the outer diameter of the reactor, and its inner diameter is smaller than the inner diameter of the reactor; an annular mesh plate is also fixedly arranged vertically and coaxially on the lower surface of the support plate, and the outer diameter of the annular mesh plate is smaller than the inner diameter of the reactor, and its inner diameter is consistent with the inner diameter of the support plate; a circular sieve plate is also fixedly arranged horizontally and coaxially on the lower surface of the annular mesh plate, and the diameter of the sieve plate is consistent with the outer diameter of the annular mesh plate; the support plate is horizontally placed on the upper surface of the reactor, and after the annular mesh plate and the sieve plate are coaxially inserted into the interior of the reactor, the support plate is screwed and fixed to the reactor by countersunk bolts; a circular cover plate is also screwed horizontally and coaxially on the upper surface of the support plate, and the upper end surface of the annular mesh plate is sealed by the cover plate.

2. The furnace network structure for a metallurgical performance comprehensive experiment reactor according to claim 1, characterized in that: A circular positioning plate is also horizontally and coaxially provided on the lower surface of the support plate, and the outer diameter of the positioning plate is consistent with the outer diameter of the support plate, and is integrally formed with the support plate; the inner diameter of the positioning plate is larger than the outer diameter of the reactor, and an annular gap is formed between the positioning plate and the reactor, so that the support plate is positioned on the upper surface of the reactor through the positioning plate.

3. The furnace network structure for a metallurgical performance comprehensive experiment reactor according to claim 1, characterized in that: A plurality of countersunk holes matching the countersunk bolts are vertically embedded and evenly spaced in the circumferential direction of the upper surface of the support plate relative to the wall thickness of the upper surface of the reactor. Each of the countersunk holes is arranged at intervals on the outer side of the cover plate, and its small diameter end is arranged vertically downward and extends vertically out of the lower surface of the support plate respectively; a plurality of threaded holes matching the countersunk bolts are vertically embedded and evenly spaced in the circumferential direction of the wall thickness of the upper surface of the reactor, and the setting position of each threaded hole corresponds to the setting position of each countersunk hole, and then the support plate and the reactor are screwed and fixed together through the cooperation of the countersunk bolts, the countersunk holes and the threaded holes.

4. The furnace network structure for a metallurgical performance comprehensive experiment reactor according to claim 3, characterized in that: The diameter of the cover plate is larger than the inner diameter of the support plate and does not interfere with the screw connection of the countersunk bolts, so that the upper end of the annular mesh plate is blocked by the cover plate.

5. The furnace network structure for a metallurgical performance comprehensive experiment reactor according to claim 3, characterized in that: A handle is vertically arranged on the upper surface of the support plate near its edge and relative to the outer side of the countersunk hole, and the support plate is extracted and dumped by the handle.

6. The furnace network structure for a metallurgical performance comprehensive experiment reactor according to claim 1, characterized in that: The annular mesh plate and the sieve plate are both mesh structures, and the mesh aperture of the annular mesh plate is smaller than the mesh aperture of the sieve plate, thereby having no effect on heating and temperature rise.

7. The furnace network structure for a metallurgical performance comprehensive experiment reactor according to claim 1, characterized in that: It also includes an avoidance mesh plate; the avoidance mesh plate is a hollow cylindrical structure with a mesh shape, and its internal space matches the thermocouple in the reactor, the lower end face of the avoidance mesh plate is open, and its upper end face is a protruding semicircle; a circular groove is also coaxially and vertically embedded in the lower surface of the sieve plate, the diameter of the circular groove is consistent with the outer diameter of the avoidance mesh plate, and its upper end vertically extends out of the upper surface of the sieve plate; the avoidance mesh plate is vertically and coaxially sleeved in the circular groove, and its lower end face is coplanar with the lower surface of the sieve plate, and is integrally formed with the sieve plate, thereby forming an avoidance groove matching the thermocouple in the reactor for the thermocouple to be inserted.

8. The furnace network structure for a metallurgical performance comprehensive experiment reactor according to claim 7, characterized in that: The height of the annular mesh plate needs to ensure that when the support plate is screwed and fixed to the upper surface of the reactor, the thermocouple of the reactor is inserted into the avoidance groove and no friction is generated on the thermocouple.

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