Closed refractory brick and trolley furnace

Abstract

The utility model discloses a closed refractory brick and a trolley furnace. The closed refractory brick comprises a group of bottom refractory bricks, a plurality of groups of middle refractory bricks and a group of top refractory bricks, positioning pieces are arranged on the sides of the bottom refractory brick and the middle refractory brick, locking pieces are arranged on the sides of the middle refractory brick and the top refractory brick, and the positioning pieces are matched with the locking pieces, so that the bottom refractory brick, the middle refractory brick and the top refractory brick are fixedly connected. According to the utility model, the positioning pieces and the locking pieces are matched for use, so that the connection between the refractory bricks is firmer, and the refractory bricks are not easy to loosen under high temperature and heavy load, thereby improving the structural stability of the whole furnace body. The gaps between the refractory bricks are greatly reduced due to the use of the novel connecting structure, so that the heat loss is effectively prevented, and the sealing performance of the furnace body is improved, which is very important for maintaining the stability of the temperature and pressure in the furnace.

Description

TECHNICAL FIELD

[0001] The utility model relates to a closed refractory brick and a car bottom furnace. BACKGROUND

[0002] In the application of high-temperature industrial furnace, especially car bottom furnace, refractory bricks are the key material to build the furnace body. Refractory bricks need to withstand extreme high temperature and chemical corrosion, while ensuring the stability and sealing of the furnace body.

[0003] The traditional refractory brick structure is mostly connected by simple stacking and mortar connection due to the simple connection method. Under high temperature and heavy load, it is easy to loosen, which increases the gap between the refractory bricks, thereby affecting the sealing of the furnace body. Therefore, a closed refractory brick and a car bottom furnace are proposed. SUMMARY

[0004] The utility model discloses a closed refractory brick and a car bottom furnace to solve the problem of the simple connection method of the traditional refractory brick structure, which is easy to loosen under high temperature and heavy load, resulting in the increase of the gap between the refractory bricks and affecting the sealing of the furnace body.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a closed refractory brick, comprising a group of bottom refractory bricks, a plurality of groups of middle refractory bricks and a group of top refractory bricks.

[0006] The side of the bottom refractory brick and the middle refractory brick is provided with a positioning piece,

[0007] The side of the middle refractory brick and the top refractory brick is provided with a locking piece,

[0008] The positioning piece and the locking piece are matched with each other to fixedly connect the bottom refractory brick, the middle refractory brick and the top refractory brick.

[0009] Preferably, the positioning piece comprises a positioning support plate, the upper part of the positioning support plate is provided with a plug-in slot, and the middle part of the plug-in slot is provided with a threaded bolt hole.

[0010] Preferably, the locking piece comprises a locking support plate, the middle part of the locking support plate is provided with a channel, and the inside of the channel is provided with a fixed bolt,

[0011] and the fixed bolt and the threaded bolt hole are matched with each other.

[0012] Preferably, the lower part of the locking support plate is provided with a connecting plate matched with the plug-in slot, so that the locking support plate is connected with the positioning support plate through the connecting plate.

[0013] Preferably, the positioning support plate and the locking support plate are connected with the refractory brick through bolts.

[0014] Preferably, connecting holes for bolt connection are arranged on the sides of the bottom refractory brick, the middle refractory brick and the top refractory brick.

[0015] Preferably, split grooves are arranged on the upper portions of the bottom refractory brick and the middle refractory brick,

[0016] Split steps are arranged on the lower portions of the middle refractory brick and the top refractory brick,

[0017] The split steps and the split grooves are matched with each other,

[0018] The bottom refractory brick, the middle refractory brick and the top refractory brick are connected through the split steps and the split grooves.

[0019] Preferably, accommodating grooves are arranged on the opposite sides of the connecting holes of the bottom refractory brick, the middle refractory brick and the top refractory brick.

[0020] A bogie furnace comprises the closed refractory brick.

[0021] Compared with the prior art, the bogie furnace has the advantages that:

[0022] The connection between the refractory bricks is more firm through the cooperation of the positioning member and the locking member, and the connection is not easy to loosen under high temperature and heavy load, thereby improving the structural stability of the whole furnace body.

[0023] The gap between the refractory bricks is greatly reduced due to the use of the novel connection structure, heat loss is effectively prevented, and the sealing performance of the furnace body is improved, which is crucial for maintaining the stability of the temperature and pressure in the furnace.

[0024] Due to the improvement of the stability and sealing performance of the refractory brick connection, frequent maintenance and replacement caused by connection failure are reduced, thereby reducing the maintenance cost.

[0025] The stability and sealing performance of the refractory brick structure are improved, the damage of high temperature and chemical corrosion to the refractory bricks is reduced, the service life of the refractory bricks is prolonged, and the replacement frequency is reduced.

[0026] Due to the improvement of the sealing performance of the furnace body and the increase of the thermal efficiency, the temperature control in the production process is more accurate, which helps to improve the product quality and production efficiency.

[0027] The positioning support plate and the locking support plate connected by bolts simplify the installation process of the refractory bricks, and make the installation more quick and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0029] Figure 2It is the side structure schematic view of the embodiment of the utility model;

[0030] Figure 3 It is the connecting hole structure schematic view of the embodiment of the utility model;

[0031] Figure 4 It is the positioning piece and locking piece cooperation schematic view of the embodiment of the utility model;

[0032] Figure 5 It is the locking piece structure schematic view of the embodiment of the utility model;

[0033] Figure 6 It is the positioning piece structure schematic view of the embodiment of the utility model.

[0034] In the drawing: 1, bottom refractory brick; 2, middle refractory brick; 3, top refractory brick; 4, positioning piece; 401, positioning support plate; 402, plug-in slot; 403, threaded bolt hole; 5, locking piece; 501, locking support plate; 502, passage; 503, fixed bolt; 504, connecting plate; 6, split groove; 7, split step plate; 8, containing groove; 9, connecting hole. DETAILED DESCRIPTION

[0035] In order to conveniently solve the problems that the traditional refractory brick structure connection mode is simple, is easy to loosen under high temperature and heavy load, causes the gap between the refractory bricks to increase, and affects the sealing performance of the furnace body, the utility model embodiment provides a closed refractory brick and a trolley furnace. Below, the technical scheme in the embodiment of the utility model will be clearly and completely described in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0036] Please refer to Figures 1-6 The utility model provides a closed refractory brick, including a group of bottom refractory brick 1, a plurality of groups of middle refractory brick 2 and a group of top refractory brick 3.

[0037] The side of bottom refractory brick 1, middle refractory brick 2 is provided with positioning piece 4, positioning piece 4 includes positioning support plate 401, the upper portion of positioning support plate 401 is provided with plug-in slot 402, and threaded bolt hole 403 is arranged in the middle of plug-in slot 402.

[0038] The side of the middle refractory brick 2 and the top refractory brick 3 is provided with a locking piece 5, the locking piece 5 comprises a locking branch plate 501, the middle part of the locking branch plate 501 is inserted with a channel 502, the inside of the channel 502 is inserted with a fixing bolt 503, the fixing bolt 503 can be inserted into the threaded bolt hole 403 through the channel 502, and the fixing bolt 503 and the threaded bolt hole 403 are matched with each other.

[0039] The side of the bottom refractory brick 1, the middle refractory brick 2 and the top refractory brick 3 is provided with a connecting hole 505 for bolt connection.

[0040] The side of the bottom refractory brick 1, the middle refractory brick 2 and the top refractory brick 3 is provided with a connecting hole 505 for bolt connection.

[0041] The upper part of the bottom refractory brick 1 and the middle refractory brick 2 is provided with a split groove 6,

[0042] The lower part of the middle refractory brick 2 and the top refractory brick 3 is provided with a split step plate 7,

[0043] The split step plate 7 and the split groove 6 are matched with each other,

[0044] The bottom refractory brick 1, the middle refractory brick 2 and the top refractory brick 3 are connected through the split step plate 7 and the split groove 6.

[0045] The bottom refractory brick 1, the middle refractory brick 2 and the top refractory brick 3 are provided with a containing groove 8 on the opposite side of the connecting hole 505.

[0046] A trolley furnace comprises the closed refractory brick.

[0047] The working principle of the closed refractory brick and the trolley furnace is as follows:

[0048] The positioning piece 4 and the locking piece 5 are installed on the side of the bottom refractory brick 1, the middle refractory brick 2 and the top refractory brick 3 through bolts;

[0049] The bottom refractory brick 1 is installed on the bottom wall of the trolley furnace, then a plurality of middle refractory bricks 2 are connected to the bottom refractory brick 1 in sequence, the split step plate 7 is aligned with the split groove 6, and the locking branch plate is inserted into the insertion groove 402 of the positioning branch plate 401 through the connecting plate 503;

[0050] The rotating fixing bolt 502 is matched with the threaded bolt hole 403 to drive the middle refractory brick 2 to move relative to the bottom refractory brick 1, and the close connection between the two groups of refractory bricks is completed;

[0051] Then the top refractory brick 3 is inserted into the split groove 6 on the middle refractory brick 2 through the split step plate 7, and the above steps are repeated to complete the connection between the top refractory brick 3 and the middle refractory brick 2.

[0052] The side refractory brick is installed: the accommodating groove part of the side refractory brick is aligned with the positioning support plate 401 and the locking support plate, so that the positioning support plate 401 and the locking support plate are accommodated in the accommodating groove of the side refractory brick, and the positioning support plate 401 and the locking support plate are shielded.

[0053] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A closed-type refractory brick, characterized by: It comprises a group of bottom refractory bricks (1), a plurality of groups of middle refractory bricks (2) and a group of top refractory bricks (3); The bottom refractory bricks (1) and the middle refractory bricks (2) are provided with positioning members (4) on the sides thereof, The middle refractory bricks (2) and the top refractory bricks (3) are provided with locking members (5) on the sides thereof, The positioning members (4) and the locking members (5) are matched with each other to fixedly connect the bottom refractory bricks (1), the middle refractory bricks (2) and the top refractory bricks (3).

2. A closed porosity firebrick according to claim 1, wherein: The positioning member (4) comprises a positioning support plate (401), and a plug-in groove (402) is formed in the upper portion of the positioning support plate (401), and a threaded bolt hole (403) is formed in the middle portion of the plug-in groove (402).

3. A closed porosity firebrick according to claim 2, wherein: The locking member (5) comprises a locking support plate (501), a channel (502) is plugged into the middle portion of the locking support plate (501), and a fixing bolt (503) is plugged into the inside of the channel (502), The fixing bolt (503) is matched with the threaded bolt hole (403).

4. A closed porosity firebrick according to claim 3, wherein: A connecting plate (504) matched with the plug-in groove (402) is arranged on the lower portion of the locking support plate (501) to connect the locking support plate (501) with the positioning support plate (401) through the connecting plate (504).

5. A closed porosity firebrick according to claim 4, wherein: The positioning support plate (401) and the locking support plate (501) are connected with the refractory bricks through bolts.

6. A closed porosity firebrick according to claim 5, wherein: Connecting holes (505) for bolt connection are formed on the sides of the bottom refractory bricks (1), the middle refractory bricks (2) and the top refractory bricks (3).

7. A closed porosity firebrick according to claim 6, wherein: A split groove (6) is formed in the upper portion of the bottom refractory bricks (1) and the middle refractory bricks (2), A split step plate (7) is arranged on the lower portion of the middle refractory bricks (2) and the top refractory bricks (3), The split step plate (7) is matched with the split groove (6), The bottom refractory bricks (1), the middle refractory bricks (2) and the top refractory bricks (3) are connected through the cooperation of the split step plate (7) and the split groove (6).

8. A closed porosity firebrick according to claim 7, wherein: Accommodation grooves (8) are formed on the opposite sides of the bottom refractory bricks (1), the middle refractory bricks (2) and the top refractory bricks (3).

9. A pusher furnace characterized by: The closed refractory bricks comprise the closed refractory bricks according to any one of claims 1-8.

Images