Biomass gasifier for sintering of tunnel kiln

Abstract

The utility model discloses a biomass gasification furnace for sintering a tunnel kiln, which comprises a furnace body, the top of the furnace body is connected with a lifting feeding mechanism, a gasification reaction chamber is arranged in the furnace body, a fire grate is erected below the gasification reaction chamber, a gas outlet is arranged on one side of the fire grate, and a gas outlet is arranged on the other side of the fire grate. A draught fan communicated with the fuel gas outlet is installed on the side, opposite to the fuel gas outlet, of the outer wall of the furnace body, the fuel gas outlet of the furnace body is connected with the tunnel kiln through an induced draft fan and a fuel gas channel, and a fuel gas purifying mechanism and a fuel gas adjusting mechanism are further installed between the furnace body and the tunnel kiln. According to the utility model, the structure of the biomass gasifier is optimized, the yield and the quality of fuel gas are improved, the continuity and the stability of sintered brick production of the tunnel kiln are ensured, the stability is high, the automation degree is high, and the operation is simple.

Description

Technical fields:

[0001] This utility model relates to environmentally friendly energy conversion equipment, and in particular to a biomass gasification furnace for tunnel kiln sintering. Background technology:

[0002] Biomass gasification is a technology that converts biomass raw materials (such as crop straw and wood waste) into combustible gas. In recent years, biomass gasification technology has continued to develop, and the gas produced has a certain calorific value and stability, making it a viable alternative energy source in various fields.

[0003] Tunnel kiln sintered bricks are a commonly used wall material in the construction industry. In traditional production processes, natural gas is typically used as fuel to provide heat for sintering the brick blanks. However, with the continuous rise in natural gas prices and supply instability, tunnel kiln sintered brick building material enterprises face challenges related to increasing energy costs and ensuring supply security. Utility Model Content:

[0004] This invention provides a biomass gasification furnace for tunnel kiln sintering, which solves the problem of high energy costs in existing tunnel kiln sintering technologies.

[0005] The technical solution of this utility model is as follows: A biomass gasification furnace for sintering in a tunnel kiln includes a furnace body, a lifting and feeding mechanism connected to the top of the furnace body, a gasification reaction chamber provided inside the furnace body, a grate mounted below the gasification reaction chamber, a gas outlet provided on one side of the grate, a fan connected to the gas outlet installed on the outer wall of the furnace body on the side opposite to the gas outlet, the gas outlet of the furnace body being connected to the tunnel kiln through an induced draft fan and a gas passage, a gas purification mechanism being installed between the furnace body and the tunnel kiln, and a gas regulating mechanism being installed at the gas inlet pipe of the tunnel kiln.

[0006] Preferably, the lifting and feeding mechanism includes a hoist with a tiltable unloading hopper installed on it. The hoist is installed inside a biomass fuel silo, which is connected to a biomass raw material pretreatment production line. The biomass raw material pretreatment production line includes a screening mechanism, a crushing mechanism, and a drying mechanism.

[0007] Preferably, a safety valve is provided on the top of the furnace body.

[0008] Preferably, the upper part of the furnace body is provided with a feeding plate driven by a feeding motor, located above the gasification reaction chamber and below the feed inlet.

[0009] Preferably, the bottom of the furnace body is provided with an ash collection box and an ash cleaning door located below the grate.

[0010] Preferably, a cooling water jacket is provided below the furnace body.

[0011] The beneficial effects of this utility model are: it optimizes the structure of the biomass gasification furnace, improves the output and quality of the fuel gas, and ensures the continuity and stability of tunnel kiln sintered brick production.

[0012] By converting pre-treated biomass raw materials into combustible gas with maximum efficiency, the cross-domain application of biomass energy in the field of tunnel kiln sintered brick building materials has been realized, reducing energy costs and improving the stability of energy supply.

[0013] By taking advantage of the combustion characteristics of tunnel kilns, energy utilization efficiency has been improved and pollutant emissions have been reduced. Attached image description:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed implementation method:

[0015] Combined with appendix Figure 1 The present invention provides a further description of a biomass gasification furnace for tunnel kiln sintering.

[0016] This utility model discloses a biomass gasification furnace for sintering in a tunnel kiln, comprising a furnace body 1, a lifting and feeding mechanism 2 connected to the top of the furnace body 1, a gasification reaction chamber 3 disposed inside the furnace body 1, a grate 4 mounted below the gasification reaction chamber 3, a gas outlet 5 disposed on one side of the grate 4, a blower 6 connected to the gas outlet 5 installed on the outer wall of the furnace body 1 on the side opposite to the gas outlet 5, the gas outlet 5 of the furnace body 1 being connected to the tunnel kiln via an induced draft fan and a gas passage, a gas purification mechanism being installed between the furnace body 1 and the tunnel kiln, and a gas regulating mechanism being installed at the gas inlet pipe of the tunnel kiln.

[0017] Furthermore, the lifting and feeding mechanism 2 includes a lifting machine 2-1, on which a tiltable unloading hopper 2-2 is installed. The lifting machine 2 is installed inside the biomass fuel bin, which is connected to a biomass raw material pretreatment production line. The biomass raw material pretreatment production line includes a screening mechanism, a crushing mechanism, and a drying mechanism.

[0018] Furthermore, a safety valve 1-1 is installed on the top of the furnace body 1.

[0019] Furthermore, a material feeding plate 7 driven by a material feeding motor is installed at the upper end of the furnace body 1, located above the gasification reaction chamber 3 and below the feed inlet.

[0020] Furthermore, the bottom of the furnace body 1, below the grate 4, is equipped with an ash receiving box 8 and an ash cleaning door 1-2.

[0021] Furthermore, a cooling water jacket 1-3 is installed below the furnace body 1.

[0022] The working principle of this utility model is: to pre-treat the biomass raw materials to make them meet the feeding requirements of the gasifier;

[0023] The pre-treated biomass feedstock is converted into fuel gas using a gasifier.

[0024] The generated gas is purified to remove impurities;

[0025] The purified gas is pressurized and transported to the combustion system of the tunnel kiln;

[0026] The combustion system of the tunnel kiln was modified to adapt to the combustion characteristics of the gas from the biomass gasifier.

[0027] The above description is only a preferred embodiment of the present utility model. All other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

Claims

1. A biomass gasifier for sintering in a tunnel kiln comprising a furnace body, characterised in that: The top of the furnace body is connected to a lifting and feeding mechanism. A gasification reaction chamber is set inside the furnace body. A grate is installed below the gasification reaction chamber. A gas outlet is set on one side of the grate. A fan connected to the gas outlet is installed on the outer wall of the furnace body on the side opposite to the gas outlet. The gas outlet of the furnace body is connected to the tunnel kiln through an induced draft fan and a gas channel. A gas purification mechanism is also installed between the furnace body and the tunnel kiln. A gas regulating mechanism is installed at the air inlet pipe of the tunnel kiln.

2. A biomass gasifier for sintering in a tunnel kiln according to claim 1, characterized in that: The lifting and feeding mechanism includes a hoist with a tiltable unloading hopper installed on it. The hoist is installed inside a biomass fuel silo, which is connected to a biomass raw material pretreatment production line. The biomass raw material pretreatment production line includes a screening mechanism, a crushing mechanism, and a drying mechanism.

3. A biomass gasifier for sintering in a tunnel kiln as claimed in claim 1, wherein: A safety valve is installed on the top of the furnace body.

4. The biomass gasifier for sintering in a tunnel kiln according to claim 1, characterized in that: The upper part of the furnace body is located above the gasification reaction chamber and below the feed inlet, and is equipped with a feeding plate driven by a feeding motor.

5. A biomass gasifier for sintering in a tunnel kiln as claimed in claim 1, wherein: The bottom of the furnace body, below the grate, is equipped with an ash collection box and an ash cleaning door.

6. A biomass gasifier for sintering in a tunnel kiln according to claim 1, characterized in that: A cooling water jacket is installed at the bottom of the furnace body.

Images