CN201988529U

CN201988529U - Sorting device of environmental protection treatment equipment

Info

Publication number: CN201988529U
Application number: CN2011200011703U
Authority: CN
Inventors: 陈秀华; 何海参
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-05
Filing date: 2011-01-05
Publication date: 2011-09-28
Anticipated expiration: 2021-01-05

Abstract

The utility model relates to a sorting device of environmental protection treatment equipment, which comprises a circuit of a metal detector circuit and a control circuit of a singlechip, wherein the circuit of the metal detector consists of a capacitor C1 and a capacitor C2 which are connected with two ends of an inductance probe LB of the detector, an output end of the circuit of the metal detector is connected with a base electrode of a triode Q1 through a capacitor C3 to form a capacitance connecting three point type oscillator, a resistor R2 is a biasing resistor of the base electrode of the triode Q1, and an oscillating signal is transmitted to a triode Q2 through a capacitor C and the resistor R2 and is transmitted to the singlechip IC1 through a collecting electrode of the triode Q2. In the utility model, junk equipment is detected by adopting an oscillation circuit of the metal detector, and the variable-frequency sorting of an electric motor is controlled through the singlechip, therefore, the sorting device has the advantages of high accuracy, high processing speed, energy conservation and environmental protection and saves total investment for the equipment, etc.

Description

Environmental protection treatment device class screening plant

Technical field

The utility model relates to a kind of environmental protection treatment device class screening plant.

Background technology

After environmental protection equipment mainly is the disposal of refuse classification, the treatment facility that burns again.Traditional environmental protection treatment equipment adopts mechanical type and simple and easy sensor to classify, and the screening precision is not high, and it is inaccurate to classify.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of environmental protection treatment device class screening plant is provided.

The technical scheme that the utility model adopted is such: environmental protection treatment device class screening plant, comprise metal detector circuit and single chip machine controlling circuit, described metal detector circuit connects capacitor C1 by the two ends of detector inductance probe LB, C2 forms, its output is formed capacitance connecting three point type oscillator through the base stage that capacitor C 3 connects triode Q1, resistor R 2 is the base biasing resistor of triode Q1, oscillator signal is by capacitor C, resistor R 2 is transported to triode Q2, colelctor electrode by triode Q2 is sent to single-chip microcomputer IC1, single-chip microcomputer IC1 divides three tunnel outputs, the first via is connected to the base stage of triode Q4 through resistance R 13 by the output level of single-chip microcomputer IC1, the colelctor electrode output of triode Q4 connects relay J 1, by relay switch J1-1 control drive motor M; The output level of secondary route single-chip microcomputer IC1 is connected to photoelectricity coupling circuit U1 through resistance R 8, the end of photoelectricity coupling circuit U1 is connected to triode Q3 through resistance R 9, its other end output is connected to repeatedly recorded speech chip IC 4 of TH2001, the TH2001 repeatedly audio signal of recorded speech chip IC 4 outputs is connected to LM386 audio frequency power amplifier chip IC 5 through capacitor C 5, and the output signal after LM386 audio frequency power amplifier chip IC 5 internal audio frequencies amplify sends to loudspeaker Y through capacitor C 7; Third Road drives chip IC 3 transmission data commands by single-chip microcomputer IC1 to 75176 interfaces and passes to the main frame PC.

Described single-chip microcomputer IC1 output connects 5054 watchdog circuit IC2, and single-chip microcomputer IC1 internal processes is recovered automatically.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: this device adopts the metal detector oscillating circuit that rubbish equipment is detected, frequency conversion screening by the Single-chip Controlling motor is got, have advantages such as precision height, processing speed be fast, have energy-saving and environmental protection, save advantage such as equipment gross investment.

Description of drawings

Fig. 1 is circuit theory diagrams of the present utility model.

The specific embodiment

Further specify the utility model below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, environmental protection treatment device class screening plant, comprise metal detector circuit and single chip machine controlling circuit, described metal detector circuit connects capacitor C1 by the two ends of detector inductance probe LB, C2 forms, its output is formed capacitance connecting three point type oscillator through the base stage that capacitor C 3 connects triode Q1, resistor R 2 is the base biasing resistor of triode Q1, oscillator signal is by capacitor C, resistor R 2 is transported to triode Q2, as metal during near detector inductance probe LB, the electromagnetic field that produces in the coil will induce eddy current in metal, this energy loss derives from oscillating circuit itself, is equivalent to increase in the circuit loss resistance.If metal and detector inductance probe LB coil are nearer, loss in the circuit strengthens, the coil value reduces, made originally and quit work with regard to the oscillator that is in the vibration critical condition, when the base stage of the ac equivalent circuit triode Q1 of oscillator has a positive signal, because the acting in opposition of triode Q1 makes its collector signal for negative, feedback by capacitor, signal on the base stage of triode Q1 and original homophase, because this is positive feedback, so circuit can produce vibration, the existence of resistance R 2 and R3 has slackened the positive feedback signal in the circuit, and circuit is under the state of starting of oscillation just, the frequency of oscillation of metal detector is about 40KHz, mainly by detector inductance probe LB, capacitor C1, the C2 decision.Regulator potentiometer R2 reduces feedback signal, makes circuit be in the state of starting of oscillation just.Resistor R 2 is base biasing resistors of triode Q1, faint oscillator signal is delivered to by triode Q2, is made it conducting by capacitor C, resistor R 2, it is the high level input that its signal is delivered to single-chip microcomputer IC1 the 25th pin, judges no signal output through single-chip microcomputer IC1 internal processes.As the inductance probe LB of metal detector during near metal object, the oscillating circuit failure of oscillation, there is not signal to pass through capacitor C, this signal is coupled through C4, the R7 current limliting is input to IC1 the 25th pin I/O, be high potential this moment, after single-chip microcomputer IC1 internal processes is handled, divide three tunnel outputs, first via output makes triode Q4 conducting through resistance R 13, relay J 1 adhesive by the 5th pin output low level signal of single chip machine controlling circuit U1, while switch J1-1 closure, the M motor gets electric, drives the running of installation electromagnetical field, draws metal material; Secondary route IC1 the 21st pin output high level makes photoelectricity coupling circuit U1 conducting through resistance R 8, triode Q3 also carries out conducting state simultaneously, repeatedly recorded speech chip IC 4, LM386 audio frequency power amplifier chip IC 5 be respectively for TH2001, by TH2001 the 2nd pin output audio signal of recorded speech chip IC 4 repeatedly, be input to LM386 audio frequency power amplifier chip IC 5 the 3rd pin through capacitor C 5 couplings, after its internal audio frequency amplifier amplifies, promote loudspeaker Y by its 5th pin output through capacitor C 7 coupling outputs and send the prompting sound; Third Road is formed the serial data communication circuit by the 10th, 11,27 pin of single-chip microcomputer IC1 and the 1st, 2,3,4 pin of 75176 interfaces driving chip IC 3, the 6th, 7 pin and the system bus that are driven chip IC 3 by 75176 interfaces are connected to PC,, be sent to 75176 interfaces driving chip IC 3 and show current data information by system bus transmission PC configuration software again the information of gathering by the instruction of single-chip microcomputer IC1 output control data.

The 9th, the 16 pin output of described single-chip microcomputer IC1 connects the 7th, 1 pin of 5054 watchdog circuit IC2, form reset circuit by resistance R 12, capacitor C 8, make the 9th pin and 5054 watchdog circuit IC2 the 7th pin preset of single-chip microcomputer IC1, single-chip microcomputer IC1 internal processes is recovered automatically, prevent that its internal processes is in the endless loop state.

More than show and described basic principle of the present utility model and principal character and advantage thereof; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. environmental protection treatment device class screening plant, it is characterized in that: comprise metal detector circuit and single chip machine controlling circuit, described metal detector circuit connects capacitor C1 by the two ends of detector inductance probe LB, C2 forms, its output signal is formed capacitance connecting three point type oscillator through the base stage that capacitor C 3 connects triode Q1, resistor R 2 is the base biasing resistor of triode Q1, oscillator signal is by capacitor C, resistor R 2 is transported to triode Q2, colelctor electrode by triode Q2 is sent to single-chip microcomputer IC1, single-chip microcomputer IC1 divides three tunnel outputs, the first via is connected to the base stage of triode Q4 through resistance R 13 by the output level of single-chip microcomputer IC1, the colelctor electrode output of triode Q4 connects relay J 1, by relay switch J1-1 control drive motor M; The output level of secondary route single-chip microcomputer IC1 is connected to photoelectricity coupling circuit U1 through resistance R 8, the end of photoelectricity coupling circuit U1 is connected to triode Q3 through resistance R 9, its other end output is connected to repeatedly recorded speech chip IC 4 of TH2001, the TH2001 repeatedly audio signal of recorded speech chip IC 4 outputs is connected to LM386 audio frequency power amplifier chip IC 5 through capacitor C 5, and the output signal after LM386 audio frequency power amplifier chip IC 5 internal audio frequencies amplify sends to loudspeaker Y through capacitor C 7; Third Road drives chip IC 3 transmission data commands by single-chip microcomputer IC1 to 75176 interfaces and passes to the main frame PC.

2. environmental protection treatment device class screening plant according to claim 1 is characterized in that: described single-chip microcomputer IC1 output connects 5054 watchdog circuit IC2, and single-chip microcomputer IC1 internal processes is recovered automatically.