A masonry structure using polyethylene film to assist coke oven and its construction method

Abstract

The invention discloses a masonry structure and a construction method thereof for assisting a coke oven with a polyethylene film, comprising a longitudinal refractory brick wall and a transverse refractory brick wall, both of which are formed by refractory brick masonry, a coke oven combustion chamber is provided with a plurality of transverse refractory brick walls to divide the coke oven combustion chamber into a plurality of combustion chamber units, the combustion chamber is provided with a plurality of polyethylene film layers from bottom to top, the two sides of the polyethylene film layer in the length direction are clamped in the longitudinal refractory brick wall, the two ends of the polyethylene film layer in the width direction are clamped in the transverse refractory brick wall, and the polyethylene film layer is covered on the transverse refractory brick wall that divides the combustion chamber. The invention can realize rapid garbage cleaning and film combustion and decomposition, thereby achieving the purpose of environmental protection, high efficiency and precise construction, and improving construction efficiency and construction quality.

Description

Technical Field

[0001] The invention relates to the field of wide carbonization chamber coke oven masonry construction, in particular to a masonry structure of a coke oven assisted by a polyethylene film and a construction method thereof. Background Art

[0002] As the country increases the overall development requirements of infrastructure, on the basis of ensuring and strengthening environmental protection, it increases the construction of basic energy production to accelerate the upgrading of production capacity and stimulate domestic demand. Recently, more and more coking projects have been upgraded and renovated in an intensive manner. How to complete the core project of coking - coke oven masonry construction in an environmentally friendly and efficient manner is the key. Moreover, the core part of the coke oven is the carbonization chamber (combustion chamber), and the quality of its masonry directly affects the service life of the coke oven.

[0003] In the past, the construction method used a thin five-ply board with a bamboo stick, which was inserted into the horizontal mortar joint of the inner wall of the refractory bricks, and the thin five-ply board was placed on the horizontal bamboo stick to ensure that the refractory bricks would not fall into the combustion chamber during masonry and damage other bricks. However, the disadvantage of this method is that the thin five-ply board with the bamboo stick cannot bear the weight of the refractory bricks. Once a refractory brick falls in, the five-ply board, bamboo stick and refractory brick will fall into the bottom of the combustion chamber together.

[0004] We now use a low-cost, high-strength, good toughness, environmentally friendly and non-toxic linear low-density polyethylene film. Combined with the construction process, it can be punched and laid to efficiently, save time, be environmentally friendly and accurately assist the coke oven masonry construction. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a masonry structure and a construction method thereof using a polyethylene film to assist a coke oven, so as to solve the hidden danger of refractory blocks falling and damaging the quality of wick bricks during the coke oven masonry process and the difficulty in cleaning the masonry units during the construction process. The present invention ensures that the construction measures can be efficiently and environmentally friendly, and can achieve environmentally friendly, efficient and precise construction, thereby improving construction efficiency and quality.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A masonry structure using polyethylene film to assist a coke oven comprises a longitudinal refractory brick wall surrounding the furnace walls on both sides of a coke oven combustion chamber in the length direction and a transverse refractory brick wall surrounding the furnace walls on both sides of the coke oven combustion chamber in the width direction. Both the transverse refractory brick wall and the longitudinal refractory brick wall are built by refractory bricks. A plurality of transverse refractory brick walls are arranged in the coke oven combustion chamber to divide the coke oven combustion chamber into a plurality of combustion chamber units. A plurality of polyethylene film layers are arranged from bottom to top in the combustion chamber. The two sides of the polyethylene film layer in the length direction are sandwiched in the longitudinal refractory brick wall, and the two ends of the polyethylene film layer in the width direction are sandwiched in the transverse refractory brick wall. The polyethylene film layer covers the transverse refractory brick wall dividing the combustion chamber. Horizontal mortar joints are arranged on both sides of the refractory bricks. The horizontal mortar joints are filled with a fire mud layer. The ends of the polyethylene film layer are located in the fire mud layers of the upper and lower refractory bricks.

[0008] The refractory bricks at the bottom of the polyethylene film layer have the same height.

[0009] The length of the polyethylene film layer sandwiched in the longitudinal refractory brick wall is 20-40 mm.

[0010] The length of the polyethylene film layer sandwiched in the longitudinal refractory brick wall is 30-35 mm.

[0011] The interval between two adjacent polyethylene film layers is 6-8 layers of refractory brick thickness.

[0012] A plurality of through holes are provided on the polyethylene film layer between the refractory bricks of the transverse refractory brick wall.

[0013] The through holes are circular through holes with a hole diameter of 8-12 mm, and the circular through holes are evenly spaced and distributed in an array.

[0014] The fire mud penetrates through the through holes of the polyethylene film layer and is bonded to the refractory bricks on both sides of the polyethylene film layer.

[0015] The construction method of the masonry structure of the coke oven using the polyethylene film as an aid comprises the following steps:

[0016] Step 1: Determine the demand and feed size of polyethylene film according to the construction drawings of the coke oven flue masonry;

[0017] Step 2: Punch holes evenly spaced according to the size of the incoming linear low-density polyethylene film, with a diameter of 8-12 mm;

[0018] Step 3, first lay 6-8 layers of refractory bricks according to the drawings, which are used as the first polyethylene film layer in sequence. When laying the polyethylene film, first lay the horizontal refractory brick wall and then the vertical refractory brick wall in the order of first laying the horizontal refractory brick wall. First, adjust the polyethylene film on the horizontal refractory brick wall into place, first lay the perforated part of the polyethylene film on the horizontal refractory brick wall used to divide the coke oven combustion chamber into several combustion chamber units, apply fire mud on both sides of the polyethylene film, and then continue to lay the refractory bricks required for the horizontal refractory brick wall on the top of the polyethylene film layer, lay the ends of the polyethylene film in the width direction on the two outermost horizontal refractory brick walls, apply fire mud on both sides of the polyethylene film, and then continue to lay the refractory bricks required for the horizontal refractory brick wall on the top of the polyethylene film layer, and finally lay the two ends of the polyethylene film in the length direction in the vertical refractory brick wall, apply fire mud on both sides of the polyethylene film, and then continue to lay the refractory bricks required for the vertical refractory brick wall on the top of the polyethylene film layer. The length of the polyethylene film layer sandwiched in the vertical refractory brick wall is 20-40mm;

[0019] Step 4: Repeat step 3 above the polyethylene film layer at a position 6-8 layers of refractory bricks apart to lay another polyethylene film layer, and clean the polyethylene film layer below before laying;

[0020] Step 5. Repeat step 4 until all masonry works are completed. Before baking the furnace, place a burning alcohol cotton ball directly on the linear film, and observe through the fire holes until the linear film in each group of combustion chambers is fully burned and degraded.

[0021] The beneficial effects of the present invention are as follows: the present invention uses a linear low-density polyethylene film with low price, high strength and good toughness to assist in construction. Under the premise of saving costs, it can also resist the block buffering and catch the block in the process of layer-by-layer masonry due to operational errors to prevent the wick bricks from being damaged. At the same time, if garbage falls into the process of construction, the film will block it and can be cleaned in time with the progress to ensure that the site is clean after the work is completed. After all the masonry is completed, since the film itself is non-toxic, tasteless and odorless, it will be burned and degraded during the kiln baking, so that the materials used in this construction measure can be efficiently and environmentally treated, thereby achieving the purpose of environmental protection, high efficiency and precise construction, and improving construction efficiency and construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view of the combustion chamber in the present invention.

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the aa direction.

[0024] Graphic markings: 1. Longitudinal refractory brick wall, 2. Horizontal refractory brick wall, 3. Through hole, 4. Polyethylene film layer, 5. Horizontal mortar joint. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] A masonry structure using polyethylene film to assist a coke oven comprises a longitudinal refractory brick wall 1 surrounding the furnace walls on both sides of the length direction of a coke oven combustion chamber and a transverse refractory brick wall 2 surrounding the furnace walls on both sides of the width direction of the coke oven combustion chamber. The transverse refractory brick wall 2 and the longitudinal refractory brick wall 1 are both built by refractory bricks. A plurality of transverse refractory brick walls 2 are arranged in the coke oven combustion chamber to divide the coke oven combustion chamber into a plurality of combustion chamber units. A plurality of polyethylene film layers 4 are arranged from bottom to top in the combustion chamber. The interval between two adjacent polyethylene film layers is 6-8 layers of refractory brick thickness. The two sides of the polyethylene film layer 4 in the length direction are sandwiched in the longitudinal refractory brick wall 1. The length of the polyethylene film layer sandwiched in the longitudinal refractory brick wall is 30 mm. The two ends of the polyethylene film layer 4 in the width direction are sandwiched in the transverse refractory brick wall. In the wall, the polyethylene film layer 4 is covered on the horizontal refractory brick wall 2 that divides the combustion chamber, so as to keep the exposed part of the polyethylene film layer 4 laid flat, which is convenient for auxiliary cleaning later. A number of circular through holes 3 with a diameter of 10 mm are evenly distributed in an array on the polyethylene film layer between the refractory bricks of the horizontal refractory brick wall 2. Horizontal mortar joints 5 are arranged on both sides of the refractory bricks. The horizontal mortar joints 5 are filled with a fire mud layer. The fire mud penetrates the through holes of the polyethylene film layer and is bonded to the refractory bricks on both sides of the polyethylene film layer. The fire mud layer in the through holes prevents the film from being pressed under the blocks, causing the blocks to slip during masonry, resulting in deviations in the verticality of the masonry. The end of the polyethylene film layer is located in the fire mud layer of the upper and lower refractory bricks, and the refractory bricks at the bottom of the polyethylene film layer have the same height.

[0027] The construction method of the masonry structure of the coke oven using the polyethylene film as an aid comprises the following steps:

[0028] Step 1: Determine the demand and feed size of polyethylene film according to the masonry drawings of the coke oven masonry flue. In the specific operation, according to the masonry drawings of the coke oven masonry flue, understand the number and size of the vertical fire channel, and calculate the demand and feed size of linear low-density polyethylene film in combination with the construction process, the division of the planned flow construction, the number of masonry workers per day, and the number of masonry layers;

[0029] Step 2: Punch holes evenly at intervals on the incoming linear low-density polyethylene film according to the size to prevent the film from being pressed under the blocks, causing the blocks to slip during masonry and deviations in the verticality of the masonry. The diameter of the holes is generally controlled to 10mm±2mm, and the holes are evenly punched at equal intervals. Combined with the construction process, the film is divided according to the number, size, construction flow section, masonry height and flue plan, and the film that is laid perpendicular to the flue direction to the brick part is punched in advance;

[0030] Step three, first build 6-8 layers of refractory bricks according to the drawings, which will serve as the first polyethylene film layer in sequence. When laying the polyethylene film, first build the horizontal refractory brick wall and then the vertical refractory brick wall. First adjust the polyethylene film on the horizontal refractory brick wall into place, and first lay the perforated part of the polyethylene film on the horizontal refractory brick wall used to divide the coke oven combustion chamber into several combustion chamber units. After punching, part of the fire mud will be squeezed out of the surface through the punched film, which is conducive to fitting with the next layer of blocks. It does not affect the micro-slippage of the blocks, and ensures that the verticality does not deviate due to this operation; apply fire mud on both sides of the polyethylene film, and then continue to build the refractory bricks required for the horizontal refractory brick wall on the top of the polyethylene film layer, and lay the ends of the polyethylene film in the width direction on the two outermost horizontal refractory brick walls, apply fire mud on both sides of the polyethylene film, and then continue to build the refractory bricks required for the horizontal refractory brick wall on the top of the polyethylene film layer, and finally lay the two ends of the polyethylene film in the length direction in the longitudinal refractory brick wall, apply fire mud on both sides of the polyethylene film, and then continue to build the refractory bricks required for the longitudinal refractory brick wall on the top of the polyethylene film layer. The length of the polyethylene film layer sandwiched in the longitudinal refractory brick wall is 20-40mm;

[0031] Step 4: Repeat step 3 above the polyethylene film layer at a distance of 6-8 layers of refractory bricks to lay another polyethylene film layer. Clean the polyethylene film layer below before laying to ensure that the furnace is clean after the work is completed.

[0032] Step 5. Repeat step 4 until all the masonry works are completed. The film is non-toxic, tasteless and odorless. After all the masonry works are completed, in front of the baking furnace, use burning alcohol cotton balls to put them directly on the linear film, and observe through the fire holes until the linear film of each group of combustion chambers is fully burned and degraded, so as to achieve efficient and environmentally friendly treatment of the materials used in this construction measure.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A masonry structure using polyethylene film to assist coke oven, characterized in that: The invention comprises a longitudinal refractory brick wall surrounding the furnace walls on both sides of the length direction of the coke oven combustion chamber and a transverse refractory brick wall surrounding the furnace walls on both sides of the width direction of the coke oven combustion chamber. Both the transverse refractory brick wall and the longitudinal refractory brick wall are built by refractory bricks. A plurality of transverse refractory brick walls are arranged in the coke oven combustion chamber to divide the coke oven combustion chamber into a plurality of combustion chamber units. A plurality of polyethylene film layers are arranged from bottom to top in the combustion chamber. The two sides of the polyethylene film layer in the length direction are sandwiched in the longitudinal refractory brick wall. The two ends of the polyethylene film layer in the width direction are sandwiched in the transverse refractory brick wall. The polyethylene film layer covers On the horizontal refractory brick wall that divides the combustion chamber, horizontal mortar joints are arranged on both sides of the refractory bricks, and the horizontal mortar joints are filled with fire mud layers, and the ends of the polyethylene film layer are located in the fire mud layers of the upper and lower refractory bricks; a plurality of through holes are opened on the polyethylene film layer between the refractory bricks of the horizontal refractory brick wall; the interval between two adjacent polyethylene film layers is 6-8 layers of refractory brick thickness; the through holes are circular through holes with a hole diameter of 8-12mm, and the circular through holes are evenly spaced and distributed in an array; the through holes through which the fire mud penetrates the polyethylene film layer are bonded to the refractory bricks on both sides of the polyethylene film layer.

2. The masonry structure of a coke oven assisted by a polyethylene film according to claim 1, characterized in that: The refractory bricks at the bottom of the polyethylene film layer have the same height.

3. The masonry structure of a coke oven assisted by a polyethylene film according to claim 1, characterized in that: The length of the polyethylene film layer sandwiched in the longitudinal refractory brick wall is 20-40 mm.

4. The masonry structure of a coke oven assisted by a polyethylene film according to claim 1, characterized in that: The length of the polyethylene film layer sandwiched in the longitudinal refractory brick wall is 30-35 mm.

5. A construction method for a coke oven masonry structure assisted by a polyethylene film according to any one of claims 1 to 4, characterized in that: The steps include: Step 1: Determine the demand and feed size of polyethylene film according to the construction drawings of the coke oven flue masonry; Step 2: Punch holes evenly spaced according to the size of the incoming linear low-density polyethylene film, with a diameter of 8-12 mm; Step 3, first lay 6-8 layers of refractory bricks according to the drawings, which are used as the first polyethylene film layer in sequence. When laying the polyethylene film, first lay the horizontal refractory brick wall and then the vertical refractory brick wall in the order of first laying the horizontal refractory brick wall. First, adjust the polyethylene film on the horizontal refractory brick wall into place, first lay the perforated part of the polyethylene film on the horizontal refractory brick wall used to divide the coke oven combustion chamber into several combustion chamber units, apply fire mud on both sides of the polyethylene film, and then continue to lay the refractory bricks required for the horizontal refractory brick wall on the top of the polyethylene film layer, lay the ends of the polyethylene film in the width direction on the two outermost horizontal refractory brick walls, apply fire mud on both sides of the polyethylene film, and then continue to lay the refractory bricks required for the horizontal refractory brick wall on the top of the polyethylene film layer, and finally lay the two ends of the polyethylene film in the length direction in the vertical refractory brick wall, apply fire mud on both sides of the polyethylene film, and then continue to lay the refractory bricks required for the vertical refractory brick wall on the top of the polyethylene film layer. The length of the polyethylene film layer sandwiched in the vertical refractory brick wall is 20-40mm; Step 4: Repeat step 3 above the polyethylene film layer at a position 6-8 layers of refractory bricks apart to lay another polyethylene film layer, and clean the polyethylene film layer below before laying; Step 5. Repeat step 4 until all masonry works are completed. Before baking the furnace, place a burning alcohol cotton ball directly on the linear film, and observe through the fire holes until the linear film in each group of combustion chambers is fully burned and degraded.

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