Grid net masonry refractory material structure at bottom of roasting furnace

Abstract

The utility model relates to the technical field of roasting furnaces, and discloses a grid net masonry refractory material structure of a roasting furnace bottom, which comprises a support ring, a plurality of grid nets are placed in the support ring, refractory and acid-proof bricks are jointly laid above the plurality of grid nets, a containing mechanism for containing the grid nets is arranged in the support ring, and the grid nets are arranged in the containing mechanism. A positioning seat is installed in front of the supporting ring, a sealing cover is fixedly connected to the front end of the positioning seat, and a positioning bolt is connected to the position, located in the sealing cover, of the front surface of the positioning seat in a penetrating and threaded mode; the vertical plates and the transverse plates are arranged, the grating net is placed between every two adjacent vertical plates, the transverse plates are used for supporting, and the fixing difficulty of the grating net is greatly reduced; the positioning bolt abuts against the supporting ring to fix the supporting ring, so that the supporting ring is convenient to disassemble and maintain, the pawl in the positioning piece is attached to the ratchet wheel, the ratchet wheel cannot rotate anticlockwise when not needing to rotate, and the fixing effect of the supporting ring is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of roasting furnace, specifically a grid net masonry refractory structure of roasting furnace bottom. BACKGROUND

[0002] In the roasting furnace used in the spray roasting method waste acid regeneration process, in order to prolong the residence time of the reaction medium in the furnace body and make it fully react, the structure form of double-layer flat bottom roasting furnace is often used to undertake the reaction medium, in the actual operation process, the reaction medium undertaken by the roasting furnace bottom still contains acid gas, and acid gas is continuously generated, which will cause corrosion to the double-layer bottom of the roasting furnace, there was a related technical solution to lining the upper layer bottom of the roasting furnace, but in use, the lining layer is damaged due to the deformation of the steel plate caused by heating, there is also a technical solution to set expansion joints when welding to avoid the damage of the lining layer caused by the deformation of the steel plate caused by heating, but the scheme is complex and difficult to construct.

[0003] Chinese patent discloses the grid net masonry refractory structure of roasting furnace bottom (authorized announcement number CN208382894U), the patent technology does not need to carry out complex welding process to the lower part of the upper layer bottom, can prevent the refractory layer rupture caused by the thermal deformation of the steel plate of the upper layer bottom of the roasting furnace under high temperature conditions to reduce its protection effect, effectively improves the overall service life of the roasting furnace, and its construction difficulty is low;

[0004] However, it has certain disadvantages: the refractory acid-resistant metal fan-shaped grid plate needs to be fixed together with the supporting beam by using metal wire or metal belt, which increases the work intensity during construction, and the metal wire or metal belt has a certain service life and needs to be regularly disassembled and maintained, secondly, it does not disclose a new fixing method of the supporting disc, that is, the supporting disc needs to be fixed in the roasting furnace by using the traditional method such as welding, which makes the supporting disc inconvenient to disassemble and maintain. Utility model content

[0005] The utility model aims at providing a grid net masonry refractory structure of roasting furnace bottom to solve the problems in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A refractory material structure built with a grid mesh at the bottom of a roasting furnace includes a support ring, multiple grid meshes are placed inside the support ring, and refractory and acid-resistant bricks are laid above the multiple grid meshes. A containing mechanism for containing the grid meshes is provided inside the support ring, and a positioning seat is installed in front of the support ring, a sealing cover is fixed to the front end of the positioning seat, and a positioning bolt is threadedly connected to the front surface of the positioning seat located inside the sealing cover, and a ratchet is fixed to the outside of the positioning bolt in front of the positioning seat, and a positioning piece is provided on the front surface of the positioning seat above the positioning bolt.

[0008] As a further solution of the present invention: the containing mechanism includes a support sleeve, the outer surface of the support sleeve is evenly fixed with a plurality of vertical plates, and the lower ends of both side surfaces of the vertical plates are fixed with horizontal plates.

[0009] As a further solution of the present invention: the positioning member includes a spring, the upper end of the spring is fixedly connected to a positioning block, and the lower end of the spring is fixedly connected to a pawl, and the left end of the pawl is internally rotatably connected to a positioning rod.

[0010] As a further solution of the present invention: the support sleeve is located inside the support ring, the end of the vertical plate is fixed to the inner surface of the support ring, the grille is located between two adjacent vertical plates, and the upper surface of the grille is flush with the upper surface of the vertical plate, and the grille is located on the upper surface of the horizontal plate.

[0011] As a further solution of the present invention: the pawl is fitted on the ratchet, and the rear ends of the positioning block and the positioning rod are both fixed to the front surface of the positioning seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is provided with vertical plates and horizontal plates. The grille is placed between two adjacent vertical plates and supported by the horizontal plates, which greatly reduces the difficulty of fixing the grille and does not require the use of additional components to support the grille.

[0014] 2. The utility model fixes the support ring by pressing the positioning bolt against it, making the support ring easy to disassemble and maintain. The pawl in the positioning piece fits the ratchet so that the ratchet does not rotate counterclockwise when it does not need to rotate, thereby avoiding the positioning bolt from rotating counterclockwise, so that the positioning bolt can always press against the support ring, ensuring the fixing effect of the support ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a refractory material structure built with a grid at the bottom of a roasting furnace;

[0016] Figure 2This is a partial exploded view of the refractory structure of the grille at the bottom of a roasting furnace;

[0017] Figure 3 This is a structural diagram of a positioning seat in a refractory structure built with a grid at the bottom of a roasting furnace;

[0018] Figure 4 This is a structural schematic diagram of the positioning parts in the refractory structure of the grid masonry at the bottom of a roasting furnace.

[0019] In the figure: 1. Support ring; 2. Grille; 3. Refractory and acid-resistant bricks; 4. Container mechanism; 5. Support sleeve; 6. Vertical plate; 7. Horizontal plate; 8. Positioning seat; 9. Sealing cover; 10. Positioning bolt; 11. Ratchet; 12. Positioning piece; 13. Spring; 14. Positioning block; 15. Pawl; 16. Positioning rod. DETAILED DESCRIPTION

[0020] See also Figure 1 and Figure 2 In an embodiment of the present invention, a refractory material structure of a grille mesh at the bottom of a roasting furnace is provided, comprising a support ring 1, a plurality of grille meshes 2 are placed inside the support ring 1, and refractory acid-resistant bricks 3 are laid above the plurality of grille meshes 2. A containing mechanism 4 for containing the grille mesh 2 is provided inside the support ring 1, and the containing mechanism 4 comprises a support sleeve 5, which is located inside the support ring 1, and a plurality of vertical plates 6 are evenly fixed to the outer surface of the support sleeve 5, and the ends of the vertical plates 6 are fixed to the inner surface of the support ring 1, the grille mesh 2 is located between two adjacent vertical plates 6, and the upper surface of the grille mesh 2 is flush with the upper surface of the vertical plates 6, and the lower ends of the two side surfaces of the vertical plates 6 are fixed with horizontal plates 7, and the grille mesh 2 is located on the upper surface of the horizontal plates 7;

[0021] The support ring 1 is attached to the inner surface of the bottom of the roasting furnace;

[0022] The grid gap structure of the grid mesh 2 can well compensate for the thermal stress deformation of the upper bottom of the roasting furnace, and will not affect the flatness of the refractory and acid-resistant bricks 3 at the upper bottom;

[0023] The grid mesh 2 is directly placed between two adjacent vertical plates 6, and the refractory and acid-resistant bricks 3 are supported by the horizontal plates 7, without the need to use additional components to fix the grid mesh.

[0024] exist Figure 1 、 Figure 3 and Figure 4Middle: A positioning seat 8 is installed in front of the support ring 1, and a sealing cover 9 is fixed to the front end of the positioning seat 8, and the front surface of the positioning seat 8 is located inside the sealing cover 9 and is threadedly connected to a positioning bolt 10, and the outside of the positioning bolt 10 is located in front of the positioning seat 8 and is fixed with a ratchet 11, and the front surface of the positioning seat 8 is located above the positioning bolt 10 and is provided with a positioning member 12, which includes a spring 13, the upper end of the spring 13 is fixed with a positioning block 14, and the lower end of the spring 13 is fixed with a pawl 15, the pawl 15 is fitted on the ratchet 11, and the left end of the pawl 15 is internally rotatably connected to a positioning rod 16, and the rear ends of the positioning block 14 and the positioning rod 16 are both fixed to the front surface of the positioning seat 8;

[0025] The rear end of the positioning seat 8 is welded to the outer surface of the roasting furnace, and the sealing cover 9 plays a sealing role. It is fixed to the positioning seat 8 by bolts;

[0026] The positioning bolt 10 is screwed into the interior of the positioning seat 8 by rotating clockwise;

[0027] The positioning bolt 10 is movable through the roasting furnace and abuts against the support ring 1, thereby fixing the support ring 1 so that the support ring 1 and the roasting furnace are detachable.

[0028] The ratchet 11 is welded to the outside of the positioning bolt 10;

[0029] The pawl 15 is in contact with the ratchet 11, so that the ratchet 11 cannot rotate counterclockwise, thereby preventing the positioning bolt 10 from loosening, thereby ensuring the fixing effect of the support ring 1; when the positioning bolt 10 is against the support ring 1, the pawl 15 is also facing the ratchet 11;

[0030] The entire structure of the fixed support ring 1 does not necessarily have to be only one, and can be increased according to needs.

[0031] The working principle of the present invention is: when in use, place the support ring 1 in the bottom of the roasting furnace, pull the pawl 15 upward to keep it away from the ratchet 11, then insert the positioning bolt 10 into the positioning seat 8 and rotate it clockwise until the positioning bolt 10 rests against the support ring 1, loosen the pawl 15 to make it fit the ratchet 11, and fix the sealing cover 9 on the positioning seat 8; then place the grid mesh 2 between two adjacent vertical plates 6, and finally lay the refractory and acid-resistant bricks 3 on the upper surface of the grid mesh 2.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A refractory material structure of a grille mesh at the bottom of a roasting furnace, comprising a support ring (1), a plurality of grille meshes (2) placed inside the support ring (1), and refractory acid-resistant bricks (3) laid on top of the plurality of grille meshes (2), characterized in that: The support ring (1) is provided with a containing mechanism (4) for containing the grille net (2), and a positioning seat (8) is installed in front of the support ring (1), the front end of the positioning seat (8) is fixedly connected to a sealing cover (9), and the front surface of the positioning seat (8) is located inside the sealing cover (9) and is threadedly connected to a positioning bolt (10), the outside of the positioning bolt (10) is located in front of the positioning seat (8) and is fixedly connected to a ratchet (11), and the front surface of the positioning seat (8) is located above the positioning bolt (10) and is provided with a positioning piece (12).

2. The grille masonry refractory structure of the roasting furnace bottom according to claim 1, characterized in that: The containing mechanism (4) comprises a supporting sleeve (5), the outer surface of the supporting sleeve (5) is evenly fixed with a plurality of vertical plates (6), and the lower ends of both sides of the vertical surface of the vertical plates (6) are fixed with horizontal plates (7).

3. The grille masonry refractory structure of the roasting furnace bottom according to claim 1, characterized in that: The positioning member (12) includes a spring (13), the upper end of the spring (13) is fixedly connected to a positioning block (14), and the lower end of the spring (13) is fixedly connected to a pawl (15), and the left end of the pawl (15) is internally rotatably connected to a positioning rod (16).

4. The grille masonry refractory structure of the roasting furnace bottom according to claim 2, characterized in that: The support sleeve (5) is located inside the support ring (1), the ends of the vertical plates (6) are fixed to the inner surface of the support ring (1), the grille net (2) is located between two adjacent vertical plates (6), and the upper surface of the grille net (2) is flush with the upper surface of the vertical plates (6), and the grille net (2) is located on the upper surface of the horizontal plate (7).

5. The grille masonry refractory structure of the roasting furnace bottom according to claim 3, characterized in that: The pawl (15) is fitted on the ratchet (11), and the rear ends of the positioning block (14) and the positioning rod (16) are both fixed to the front surface of the positioning seat (8).

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