Glass kiln is a common glass melting furnace. Since the batch materials are melted into glass liquid in the trough-shaped pool of this kiln, it is called a kiln.
1. According to the manufactured products, it is mainly divided into:
1. Flat glass kiln;
2. Daily glass kiln.
2. According to the molding method, it is mainly divided into:
1. Float glass kiln;
2. Flat pull glass kiln;
3. Vertical pull glass kiln.
3. According to the heat source used for melting glass, it can be divided into:
1. Flame kiln, which uses burning fuel as the source of heat energy;
2. Electric kiln, which uses electricity as the source of heat energy;
3. Flame electric kiln, which uses fuel as the main source of heat energy and electricity as the auxiliary source of heat energy.
4. According to the continuity of the melting process, it is mainly divided into:
1. Intermittent kiln, in which the various stages of glass melting are carried out in the same part of the kiln at different times, and the temperature system of the kiln is variable;
2. Continuous kiln, in which the various stages of glass melting are carried out in different parts of the kiln at the same time, and the temperature system of the kiln is stable.
5. According to the flue gas waste heat recovery equipment, it is mainly divided into:
1. Regenerative kiln, that is, the flue gas waste heat is recovered by heat storage;
2. Heat exchange kiln, that is, the flue gas waste heat is recovered by thermal method.
6. According to the direction of the flame flow in the kiln, it is mainly divided into:
1. Horizontal flame kiln, that is, the flame in the kiln flows horizontally, perpendicular to the direction of glass flow. Most of the large glass kilns in my country are of this type;
2. Horseshoe flame kiln, that is, the flame in the kiln flows in a horseshoe shape, mostly used in medium and small glass kilns;
3. Longitudinal flame kiln, that is, the flame in the kiln flows vertically, parallel to the direction of glass liquid flow.
The order and method of masonry of glass melting furnace
(1) On the basis of the qualified acceptance of the steel structure of the pool bottom, the center lines of the relevant feeding ports, front and rear rows of bubbles and each drawing leak plate on the forming channel are released according to the kiln construction baseline and the kiln center line.
(2) Pool bottom masonry, including the channel bottom. After the insulation bricks and kaolin bricks are laid, the inside and outside of the pool wall are widened by 30-50mm for leveling. The multi-layer underground structure must be controlled according to the negative deviation of the elevation when laying, and the allowable deviation of the total thickness of the pool bottom is generally -3mm. A layer of chrome ramming material is laid on the kaolin bricks at the bottom of the pool as a sealing layer to prevent the glass liquid from penetrating into the clay brick layer with poor corrosion resistance.
(3) Pool wall construction, including the passage pool wall. The bottom bricks of the pool wall must be level, otherwise the bottom bricks of this part must be processed until they meet the requirements. When laying multi-layer pool wall bricks, the inside should be operated first and then the outside. The size of the furnace should be ensured. It is strictly forbidden to face the chiseled surface of the bricks towards the furnace. The corners need to be laid with staggered joints and strictly maintain verticality.
(4) Lifting columns. Take temporary measures to stabilize the columns, and then install the slag angle steel according to the design requirements. The columns and slag angle steel must be close together, and the elevation should be determined at the same time.
(5) Laying down the arch. After making the arch base and carrying out the bearing settlement test and corresponding size inspection on the arch frame, the arch is laid from both sides to the center at the same time, and continuous operation is required. The construction of the arch insulation layer shall be carried out after the kiln is baked.
(6) Laying down the breast wall, front wall, rear wall and flame space of the passage. The laying of the breast wall shall be carried out after carefully checking that the bracket, support plate and support frame are installed properly. When laying the hook bricks and breast wall bricks, measures shall be taken to prevent them from falling into the kiln.
(7) Laying down the flue and chimney. The construction must be carried out after clearing the debris in the kiln and vacuuming it. The construction of the furnace flue and chimney must be coordinated with the metal heat exchanger. The passage chimney must be laid after the passage is completed.
(8) There are two types of laying methods: dry laying and wet laying.
1. Dry masonry parts: the bottom and wall of the melting part and the passage, the hook bricks in the flame space, the arch bricks in the melting part and the flue, the electric fused brick masonry and the passage cover bricks.
2. Wet masonry parts: the side walls and arch top of the melting part flame space, the insulation bricks of the flue, chimney and kiln. The mud used for wet masonry should be prepared according to the refractory bricks used.
Wechat Us 
