CN205175071U - Can mixed heating device of high low temperature - Google Patents

Abstract

The utility model discloses a high and low temperature mixed heating device, which comprises a PLC control system, a mixing chamber, and a heating furnace and a cooling fan respectively connected to the mixing chamber. The mixing chamber is composed of a mixing chamber and an air outlet chamber. A windshield is arranged in the mixing chamber, an air blower is arranged in the air outlet chamber, and the air outlet of the air outlet chamber is connected with the drying equipment; the utility model divides the mixing chamber into two parts, the mixing chamber and the air outlet chamber, so that The hot air and cold air are mixed in the mixing chamber first, and the PLC control system controls the air intake volume of the cooling fan to adjust the temperature, and then reaches the air outlet chamber and is transported to the drying equipment by the air blower; the utility model has the advantages of simple structure and reliable operation. Features, can realize high and low temperature mixed heating function, reduce production cost.

Description

A high and low temperature mixed heating device

technical field

The utility model belongs to the technical field of thermal equipment, in particular to a heat supply device capable of mixing high and low temperature with simple structure.

Background technique

In the process of fertilizer production and manufacturing, drying and cooling of fertilizer granules is an essential link. At present, the traditional domestic drying and heating method is that the fan sucks the outside air and blows it into the heat exchange device for heat exchange, and then enters the drying equipment, that is, "positive pressure heat exchange"; The air is blown into the drying equipment, which is "negative pressure heat exchange". On the one hand, the control of the hot air temperature is to adjust the temperature of the heat source of the heat exchange device, but there are still disadvantages that the temperature of the hot air is difficult to control, and the drying temperature requirements of fertilizer particles are different at different stages, which also increases the control requirements of the hot air; On the other hand, to adjust the temperature of the heat source of the heat exchange device, an employee must be set up to monitor and control in real time, which is extremely inconvenient, causes waste of manpower, and increases production costs.

Utility model content

In view of the above technical problems, the utility model aims to provide a high and low temperature mixed heating device that can realize automatic adjustment.

In order to solve the above problems, the utility model adopts such a technical solution: a high and low temperature mixing heating device, including a PLC control system, a mixing chamber, and a heating stove and a cooling fan respectively connected to the mixing chamber. The mixing chamber consists of Composed of a mixing chamber and an air outlet chamber, a windshield is set in the mixing chamber, an air blower is arranged in the air outlet chamber, and the air outlet of the air outlet chamber is connected to the drying equipment; the utility model divides the mixing chamber into a mixing chamber The hot air and the cold air are mixed in the mixing chamber first, and the PLC control system controls the air intake volume of the cooling fan to adjust the temperature, and then reaches the outlet air chamber and is transported to the drying equipment by the air blower.

Beneficial effects: the utility model has a simple structure, can realize high and low temperature mixed heating function, provides assistance for hot air flow into drying equipment, stable and reliable heating, automatic temperature control, can effectively guarantee the quality of compound fertilizer, and reduces production cost.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Labels in the figure: 1—PLC control system, 2—mixing chamber, 3—mixing chamber, 4—air outlet chamber, 5—air blower, 6—return baffle, 7—auxiliary baffle, 8—heating air supply Furnace, 9—air cooler, 10—temperature sensor, 11—drying equipment.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings, but the utility model shall not be limited in any way, and any changes or improvements made based on the teaching of the utility model shall belong to the protection scope of the utility model.

According to the high and low temperature mixing heating device shown in accompanying drawing 1, comprise PLC control system 1, mixing chamber 2, and the heating blast stove 8 that is connected with mixing chamber 2, air cooler 9 respectively, mixing chamber 2 is composed of mixing chamber 3 Composed with the air outlet chamber 4, the mixing chamber 3 is provided with a windshield, the air outlet chamber 4 is provided with an air blower 5, and the air outlet of the outlet chamber 4 is connected to the drying equipment 11.

A temperature sensor 10 is arranged between the mixing chamber 3 and the air outlet chamber 4 .

The motor speed of the cooling fan 9 is controlled by the PLC control system 1 .

The temperature sensor 10 is connected with the PLC control system 1 .

The blower 5 is a jet fan.

The mixing chamber 3 is provided with a backflow baffle 6 and an auxiliary baffle 7 to block flow and make the hot air and cold air mix evenly.

The backflow baffle 6 is arranged on the axis line of the mixing chamber 3 and supplies the front ends of the air inlets of the hot stove 8 and the air cooler 9 .

The auxiliary baffles 7 are arranged on the inner walls on both sides of the axis of the mixing chamber 3, and at least one auxiliary baffle 7 is located.

The backflow baffle 6 and the auxiliary baffle 7 are made of high temperature resistant and wear resistant materials.

The length and width of the backflow baffle 6 and the auxiliary baffle 7 are one-third of the inner diameter of the mixing chamber 3 .

Working principle and working process of the present utility model are as follows :

The utility model divides the mixing chamber into two parts, the mixing chamber and the air outlet chamber. The mixing chamber is respectively connected to the heating furnace and the cooling fan, and the air outlet of the air outlet chamber is connected to the drying equipment; Plates and auxiliary baffles, a temperature sensor is installed at the connection between the mixing chamber and the air outlet chamber, and the motor and temperature sensor of the cooling fan are connected to the PLC control system. When working, start the cooling fan through the PLC control system. The cold air blown by the cooling fan and the hot air provided by the heating stove are evenly mixed in the mixing chamber under the flow resistance of the return baffle and the auxiliary baffle, and then enter the outlet air chamber. The temperature sensor measures the temperature and feeds back the signal to the PLC control system. The PLC control system controls the air volume of the cooling fan in real time and sends it to the drying equipment by the air blower.

The utility model has the characteristics of simple structure, reliable operation, automatic temperature control, high and low temperature mixed heating function, and reduced production cost.

Claims (10)

1. one kind high/low temperature can mix heating plant, comprise PLC control system (1), mixing chamber (2), and the heat supply wind furnace (8), the air-cooler (9) that are connected with mixing chamber (2) respectively, it is characterized in that: mixing chamber (2) is made up of hybrid chamber (3) and air-out wind chamber (4), hybrid chamber arranges deep bead in (3), blower (5) is set in air-out wind chamber (4), and the air outlet in air-out wind chamber (4) is connected with drying equipment (11).

2. according to claim 1 can high/low temperature mixing heating plant, it is characterized in that: between described hybrid chamber (3) and air-out wind chamber (4), be provided with temperature sensor (10).

3. according to claim 1 can high/low temperature mixing heating plant, it is characterized in that: the motor speed of described air-cooler (9) is controlled by PLC control system (1).

4. according to claim 2 can high/low temperature mixing heating plant, it is characterized in that: described temperature sensor (10) is connected with PLC control system (1).

5. according to claim 1 can high/low temperature mixing heating plant, it is characterized in that: described blower (5) for spray blower fan.

6. according to claim 1 can high/low temperature mixing heating plant, it is characterized in that: in described hybrid chamber (3), be provided with reverse flow baffle (6) and sub barrier (7).

7. according to claim 6 can high/low temperature mixing heating plant, it is characterized in that: described reverse flow baffle (6) is arranged on the axial line of hybrid chamber (3), the front end of heat supply wind furnace (8) and air-cooler (9) air inlet.

8. according to claim 6 can high/low temperature mixing heating plant, to it is characterized in that: described sub barrier (7) is arranged on the inwall of hybrid chamber (3) axial line both sides, and sub barrier (7) at least one piece, position.

9. according to claim 6 can high/low temperature mixing heating plant, it is characterized in that: described reverse flow baffle (6) and sub barrier (7) adopt high temperature resistant, anti-abrasive material to make.

10. high/low temperature can mix heating plant according to according to claim 6, it is characterized in that: the length of described reverse flow baffle (6) and sub barrier (7) and width are 1/3rd sizes of hybrid chamber (3) internal diameter.