阅读说明：本技术 一种节能环保型湿砂烘干系统 (Energy-concerving and environment-protective type wet sand drying system ) 是由 段成慧 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种节能环保型湿砂烘干系统,包括有热能产生装置、滚筒形烘干机、风干冷却机构、干砂储存库,热能产生装置包括有沸腾炉,沸腾炉的进气口安装有鼓风机,沸腾炉的出风口通过管道连接至滚筒形烘干机一端的进气口,滚筒形烘干机的内壁上分布有螺旋叶片,出料端的设有集料斗,出料端的上端部设有出气口,出气口通过回流输气管道连接至沸腾炉上端部的回流进气口；滚筒形烘干机上端的进料口安装有湿砂循环输送带；集料斗的出料通过提升机输送至风干冷却机构,经风干冷却机构风干冷却后的干砂通过提升机将干砂输送至干砂储存库。本发明减少燃料的使用,节省了能源,具有环保作用,节约了生产成本。(The invention discloses an energy-saving environment-friendly wet sand drying system, which comprises a heat energy generating device, a roller-shaped dryer, an air drying and cooling mechanism and a dry sand storage warehouse, wherein the heat energy generating device comprises a fluidized bed furnace, an air blower is installed at an air inlet of the fluidized bed furnace, an air outlet of the fluidized bed furnace is connected to an air inlet at one end of the roller-shaped dryer through a pipeline, spiral blades are distributed on the inner wall of the roller-shaped dryer, a material collecting hopper is arranged at a discharge end, an air outlet is arranged at the upper end part of the discharge end, and the air outlet is connected to a backflow air inlet at the upper end part of; a feed port at the upper end of the roller-shaped dryer is provided with a wet sand circulating conveyer belt; the ejection of compact of collecting hopper is carried to air-dry cooling body through the lifting machine, and the dry sand after air-dry cooling body air-dries the cooling is carried to dry sand repository through the lifting machine with dry sand. The invention reduces the use of fuel, saves energy, has the function of environmental protection and saves production cost.)

1. The utility model provides an energy-concerving and environment-protective type wet sand drying system which characterized in that: the drying device comprises a heat energy generating device, a roller-shaped drying machine, an air drying and cooling mechanism and a dry sand storage warehouse, wherein the heat energy generating device comprises a boiling furnace (1), an air blower (2) is installed at an air inlet of the boiling furnace (1), an air outlet of the boiling furnace (1) is connected to an air inlet at one end of the roller-shaped drying machine (3) through a pipeline, spiral blades (4) are distributed on the inner wall of the roller-shaped drying machine (3), the other end of the roller-shaped drying machine (3) is a discharging end, a driving shaft (5) driven by a driving motor is installed in the middle of the end face of the discharging end, a collecting hopper (6) is arranged at the discharging end, an air outlet (7) is arranged at the upper end part of the discharging end, and the air outlet (7) is connected to a backflow air inlet at the upper end part of the boiling furnace (1) through a backflow air conveying pipeline (8); a wet sand circulating conveyer belt (8) is arranged at a feed inlet at the upper end of the roller-shaped dryer (3); the discharging of collecting hopper (6) is carried to air-dry cooling body (9) through the lifting machine, and dry sand after air-dry cooling body (9) air-dries the cooling is carried to dry sand repository (11) through lifting machine (10).

2. The energy-saving environment-friendly green sand drying system according to claim 1, characterized in that: the upper end of fluidized bed furnace (1) be equipped with the feed inlet, install storage hopper (12) on the feed inlet, the discharging pipe of the bottom of storage hopper (12) faces the feed inlet, and installs solenoid valve (13) on the discharging pipe, install the thermometer on the pipeline between the air outlet of fluidized bed furnace (1) and the air inlet of drum-shaped drying-machine (3), the air inlet of drum-shaped drying-machine (3) one end, storage hopper (12) are located lifting machine (10) discharge end under, the feed end of lifting machine (10) is located the discharge gate below of breaker, the feed inlet of breaker is located the discharge end below of endless conveyor belt (14), install the coal scuttle on the feed end of endless conveyor belt (14).

3. The energy-saving environment-friendly green sand drying system according to claim 1, characterized in that: the rotary drying machine is characterized in that movable rings are distributed on the outer circumferential surfaces of two end parts of the rotary drying machine (3), rotating and fixed rings are sleeved outside the movable rings, the bottom end parts of the fixed rings are supported and erected through supports, and an air inlet of the rotary drying machine (3) is rotatably connected with an air inlet pipeline.

4. The energy-saving environment-friendly green sand drying system according to claim 1, characterized in that: the air-drying cooling mechanism (9) comprises a cylinder body (9-1), partition plates (9-2) which are arranged in a staggered and inclined mode at intervals are distributed in the cylinder body (9-1), an air outlet hole is formed in the upper end cover of the cylinder body (9-1), the air outlet hole is connected to a backflow gas transmission pipeline (9-3) through a pipeline, and a discharge hole is formed in the bottom end of the cylinder body.

5. The energy-saving environment-friendly green sand drying system according to claim 4, characterized in that: the bottom of the discharge end of the cylinder (9-1) is provided with an obliquely arranged vibrating screen (9-4), the discharge end of the vibrating screen (9-4) is positioned at the feed inlet of the elevator (10), and dry sand is respectively conveyed to a dry sand storage warehouse (9-5) for storage through a pneumatic three-way distributor after being lifted by the elevator (10).

The technical field is as follows:

the invention relates to the technical field of green sand drying, and mainly relates to an energy-saving and environment-friendly green sand drying system.

Background art:

when the dry-mixed mortar is produced, the water content of the raw material sand is required to be less than 0.5%, and the raw material sand cannot be directly used for the production of the dry-mixed mortar due to too high water content, so that the raw material sand needs to be dried before being used, and the water content of the raw material sand meets the condition of meeting the production requirement of the dry-mixed mortar.

A wet sand drying system in an existing dry-mixed mortar mixing station comprises a dryer and a fluidized bed furnace, wherein wet sand is firstly introduced into the dryer, then heat energy generated by the fluidized bed furnace is introduced into the dryer, and the wet sand entering the dryer is dried by the heat energy generated by the fluidized bed furnace. The process adopts a drying system consisting of a simple dryer and a fluidized bed furnace, the structure is simple, the fluidized bed furnace needs to continuously and well generate heat energy, a large amount of fuel is needed, anthracite is commonly used, the heat generated by burning the anthracite enters the dryer along with gas to dry wet sand in the dryer, and the two problems exist,

firstly, the method comprises the following steps: the grit after the stoving is direct to be carried to the sand storehouse through the lifting machine, and the wet sand is through drying, and its temperature must rise, directly gets into the sand storehouse and piles up the waste that can produce not only can have heat energy, and the dry sand does not further cool off moreover, and heat energy gathers, can smuggle certain moisture secretly in the production straining, at the sand storehouse internal cooling, moisture still can be absorbed by the dry sand to influence the drying quality of sand in the sand storehouse.

II, secondly: the exhaust gas from the exhaust port of the dryer is directly exhausted, and the heat contained in the exhausted hot air is wasted, thereby causing the waste of energy, and therefore, the two problems need to be solved.

The invention content is as follows:

the invention aims to make up the defects of the prior art, and provides an energy-saving and environment-friendly wet sand drying system.

The invention is realized by the following technical scheme:

the utility model provides an energy-concerving and environment-protective type wet sand drying system which characterized in that: the drying device comprises a heat energy generating device, a roller-shaped drying machine, an air drying and cooling mechanism and a dry sand storage warehouse, wherein the heat energy generating device comprises a fluidized bed furnace, an air blower is installed at an air inlet of the fluidized bed furnace, an air outlet of the fluidized bed furnace is connected to an air inlet at one end of the roller-shaped drying machine through a pipeline, spiral blades are distributed on the inner wall of the roller-shaped drying machine, the other end of the roller-shaped drying machine is a discharge end, a driving shaft driven by a driving motor is installed in the middle of the end surface of the discharge end, a collecting hopper is arranged at the discharge end, an air outlet is arranged at the upper end part of the discharge end, and the air outlet is connected to a backflow air inlet at the upper end part of the fluidized bed furnace through a backflow air conveying pipeline; a feed port at the upper end of the roller-shaped dryer is provided with a wet sand circulating conveyer belt; the ejection of compact of collecting hopper is carried to air-dry cooling body through the lifting machine, and the dry sand after air-dry cooling body air-dries the cooling carries to dry sand repository through the lifting machine with dry sand.

The upper end of fluidized bed furnace be equipped with the feed inlet, install the storage hopper on the feed inlet, the discharging pipe of the bottom of storage hopper faces the feed inlet, and installs the solenoid valve on the discharging pipe, install the thermometer on the pipeline between the air outlet of fluidized bed furnace and the air inlet of drum-shaped drying-machine, the air inlet of drum-shaped drying-machine one end, it is located the lifting machine discharge end under to go out the hopper, the feed end of lifting machine is located the discharge gate below of breaker, the feed inlet of breaker is located the discharge end below of endless conveyor, install the coal scuttle on the feed end of endless conveyor.

The rotary dryer is characterized in that movable rings are distributed on the outer circumferential surfaces of two end parts of the rotary dryer, rotating rings are sleeved outside the movable rings, the bottom end parts of the fixed rings are supported and erected through supports, and an air inlet of the rotary dryer is rotatably connected with an air inlet pipeline.

The air-drying cooling mechanism comprises a barrel, partition plates which are arranged in the barrel in a staggered and inclined mode at intervals are distributed in the barrel, air outlet holes are formed in the upper end cover of the barrel and connected to a backflow gas transmission pipeline through pipelines, and a discharge hole is formed in the bottom end of the barrel.

The bottom of barrel discharge end erect the shale shaker that the slope set up, the discharge end of shale shaker is located the feed inlet department of lifting machine, promotes the back through the lifting machine and carries dry sand to dry sand repository respectively through pneumatic tee bend tripper and store.

The principle is as follows: the heat energy is generated by the fluidized bed roaster, the heat energy is introduced into the roller-shaped dryer, the operation of conveying and drying while rolling is carried out on the wet sand in the dryer, the wet sand can be cooled and air-dried by adding the air-drying and cooling process after being dried, the temperature of the sand before entering the sand warehouse is close to the normal temperature, the quality of the dry sand is ensured, the dried sand is prevented from being directly conveyed to the sand warehouse by the hoister, the heat energy is gathered, certain moisture can be carried in the produced sand during the rising, the sand is cooled in the sand warehouse, the moisture can still be absorbed by the dry sand, the drying quality of the sand in the sand warehouse is influenced, the heat of the dried sand can be dissipated in the cooling process and recovered to the fluidized bed roaster through the exhaust port, the gas exhausted from the exhaust port in the dryer is also recovered to the closed-boiling furnace, the hot gas can be used for reducing the fuel, and the energy is saved, and the hot gas is not directly exhausted, so that the device has an environment-friendly effect.

The invention has the advantages that:

the system has reasonable structural design, the exhaust port of the fluidized bed furnace and the exhaust port of the air drying and cooling mechanism are recycled to the fluidized bed furnace through the backflow gas transmission pipeline, the use of fuel can be reduced due to the entering of hot gas, so that the energy is saved, the hot gas is not directly exhausted, the environment-friendly effect is realized, and the production cost is saved.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

The specific implementation mode is as follows:

see the drawings.

The utility model provides an energy-concerving and environment-protective type wet sand drying system which characterized in that: the drying device comprises a heat energy generating device, a roller-shaped drying machine, an air drying and cooling mechanism and a dry sand storage warehouse, wherein the heat energy generating device comprises a boiling furnace 1, an air blower 2 is installed at an air inlet of the boiling furnace 1, an air outlet of the boiling furnace 1 is connected to an air inlet at one end of the roller-shaped drying machine 3 through a pipeline, spiral blades 4 are distributed on the inner wall of the roller-shaped drying machine 3, the other end of the roller-shaped drying machine 3 is a discharge end, a driving shaft 5 driven by a driving motor is installed in the middle of the end surface of the discharge end, a material collecting hopper 6 is arranged at the discharge end, an air outlet 7 is arranged at the upper end part of the discharge end, and the air outlet 7 is connected to a backflow air inlet at the upper end part of the boiling furnace 1 through a backflow air conveying pipeline 8; a wet sand circulating conveyer belt 8 is arranged at a feed inlet at the upper end of the roller-shaped dryer 3; the ejection of compact of collecting hopper 6 is carried to air-dry cooling body 9 through the lifting machine, and the dry sand after air-drying cooling body 9 air-dries the cooling carries to dry sand repository 11 through lifting machine 10 with dry sand.

The upper end of fluidized bed furnace 1 be equipped with the feed inlet, install storage hopper 12 on the feed inlet, the discharging pipe of the bottom of storage hopper 12 faces the feed inlet, and installs solenoid valve 13 on the discharging pipe, install the thermometer on the pipeline between the air outlet of fluidized bed furnace 1 and the air inlet of drum-shaped drying-machine 3, the air inlet of drum-shaped drying-machine 3 one end, storage hopper 12 is located 10 discharge ends of lifting machine under, the feed end of lifting machine 10 is located the discharge gate below of breaker, the feed inlet of breaker is located the discharge end below of endless conveyor belt 14, install the coal scuttle on the feed end of endless conveyor belt 14.

The rotary dryer is characterized in that movable rings are distributed on the outer circumferential surfaces of two end parts of the roller-shaped dryer 3, rotating rings are sleeved outside the movable rings, the bottom end parts of the fixed rings are supported and erected through supports, and an air inlet of the roller-shaped dryer 3 is rotatably connected with an air inlet pipeline.

The air-drying cooling mechanism 9 comprises a cylinder body 9-1, partition plates 9-2 which are arranged in the cylinder body 9-1 in an inclined mode at intervals in a staggered mode are distributed in the cylinder body, an air outlet hole is formed in the upper end cover of the cylinder body 9-1 and is connected to a backflow air conveying pipeline 9-3 through a pipeline, and a discharge hole is formed in the bottom end of the cylinder body.

The bottom of the discharge end of the cylinder 9-1 is provided with an obliquely arranged vibrating screen 15, the discharge end of the vibrating screen 15 is positioned at the feed inlet of the hoister 10, and dry sand is respectively conveyed to the dry sand storage 11 for storage through a pneumatic three-way distributor after being hoisted by the hoister 10.

The specific flow of the system during working is as follows: firstly, a certain amount of anthracite is put into a fluidized bed furnace, so that hot gas generated by the anthracite is introduced into a drum-shaped dryer, the anthracite needs to be crushed by a crusher before being put into use because of large particles, in order to ensure the full combustion effect of the anthracite, whether the anthracite is fed or not can be controlled in real time by an electromagnetic valve on a discharge pipe of the anthracite through a structure with all discharge, the temperature of the anthracite is detected by a thermometer on a pipeline between the fluidized bed furnace and the drum-shaped dryer, and whether fuel is required to be put into the anthracite or not is detected; wet sand in the roller-shaped dryer can be slowly conveyed along with the manure spiral blade on the inner wall of the roller-shaped dryer in a rolling mode, the operation of conveying and drying while rolling is carried out until the wet sand is conveyed to the other end of the roller-shaped dryer, the wet sand is discharged from the bottom end of the roller-shaped dryer, the operation of drying is finished, the dried sand belt has a certain temperature, the wet sand can be cooled and air-dried by adding an air-drying and cooling process, the temperature of the sand before entering a sand warehouse is close to the normal temperature, the quality of dry sand is guaranteed, the sand is screened by a stand-east screen after being discharged from an air-drying and cooling mechanism, and then the sand is conveyed to the sand warehouse by a lifter for storage and standby; the exhaust port of the fluidized bed furnace and the exhaust port of the air-drying cooling mechanism in the system are both recovered to the fluidized bed furnace through the backflow gas transmission pipeline, the use of fuel can be reduced when hot gas enters, so that energy is saved, the hot gas is not directly exhausted, the environment-friendly effect is achieved, the production cost is saved, and the requirements of energy conservation and environmental protection are met.